Perceived health risks and perceptions of expert consensus in modern food society

The article deals with perceptions of food and health risks. Relevant questions are: (1) To what degree do consumers associate specific negative health consequences with food additives and genetically modified food, and do their perceptions differ from the experts’ views? (2) How do consumers perceive experts’ evaluations of health risks connected to food additives and genetically modified food? The results are based on a survey of Norwegian residents in 1999/2000, and of a selected sample of Norwegian experts on food and risks. There were great differences between consumers and experts in their assessments of health risks. To varying extents, consumers associate various health consequences with the risk factors. Consumers seem to perceive experts as more united about the risk factors as health risks than experts do themselves. The findings are discussed with reference to the stigma concept and to a social constructionist perspective. The results contribute to the understanding of consumer perception of risks and their understanding of expert agreement about health risks. They also point to the importance of the interplay between consumers and experts in the public debate and communication process about food and risks.     

Beyond under the dome: an environmental documentary amplified public risk perception about air pollution in China

Abstract

Air pollution is a major environmental problem in China and it poses serious risks to public health. Based on the social amplification of risk framework (SARF), this study examines how media, in particular, an impactful environmental documentary titled Under the Dome, influenced Chinese citizens’ risk perception about air pollution. Survey results showed that exposure to the documentary amplified risk perception and risk perception was significantly related to viewers’ information seeking behaviors, policy support, and individual mitigation action about this issue.     

Risk as perceived by the German public: pervasive risks and “switching” risks

In 2001, a major project on the perception and evaluation of risks in southern Germany was conducted consisting of survey data as well as of semi‐structured interviews. With reference to the psychometric paradigm, this article analyzes public risk perception, pointing out the perceived risk semantic for nuclear energy, GM‐food, mad cow disease (BSE), crime, global climate change, mobile telephony and its radiation risks. These hazards reveal different patterns of risk perception and different levels of risk acceptability. Secondly, a comparison of qualitative and quantitative findings will be conducted: qualitative analyses indicate that the results of quantitative rating scales on the perception, evaluation and acceptance of technical and environmental hazards might be misleading since the public's focus on risks as elicited by open association stimuli relies much more on ‘everyday‐life’ and ‘pervasive’ risks than for instance on hazards emerging from new technologies. The relevance of technological risks tends to be dependent on the context: If explicitly mentioned in newscasts, in debates or listed in questionnaires memories, fears or other immediate responses become activated, yet they may be forgotten a short time later. We have called this phenomenon “switching effect” and the respective risks “switching risks”. In standardized opinion polls such ‘switching effects’ may evoke firm judgments, even if the importance in the interviewee's mental representation seems marginal.     

What role for social scientists in risk expertise?

When it comes to risks – health and environmental risks, like those linked to the use of nanotechnologies, pesticides, etc. – three main groups of actors are easily identified, brought together through boundary organisations such as environmental and sanitary risk agencies: the natural and technical scientists, who provide their expertise to assess risks (especially toxicologists, epidemiologists and microbiologists); the policy makers, who take decisions regarding risk management and risk regulation; the lay public, who are more and more involved in participatory frameworks. Sometimes three other groups of actors are added: the ‘economists’ who can for instance conduct cost–benefit assessments or multi-criteria analyses (especially ecological economists, public economists, political economists and social economists); the ‘philosophers’/‘ethicists’ who can use ethics to highlight moral choices and responsibilities in face of risks; and the ‘jurists’/‘legal experts’ who can justify authorisation or interdiction according to law. Inversely, there is a group of actors which is not clearly identified, that of social scientists, even though a considerable quantity of social science knowledge on risk has been produced. Why is there such a discrepancy? This article, based on a critical review of the literature, aims to make sense of the fuzziness surrounding the involvement of social scientists when it comes to risk expertise. The article shows that one reason for this puzzling situation is to be found in the gap between what social scientists often want to do when they are called in as risk experts and what natural scientists and public policy makers actually expect from them.     

Public perception and responses to environmental pollution and health risks: evaluation and implication from a national survey in China

Concerns have been raised among policy-makers, researchers and Chinese citizens regarding the widespread environmental degradation that has occurred in China in recent decades. Years of environmental education and media coverage on pollution harm and health risks have not only provided information about pollution to the public, but have also strengthened people’s concerns. However, an ‘intense focus’ on pollution is far from sufficient; at present, it is necessary to assess to what extent the public can identify specific environmental conditions and whether they are ready to cope with potential health risks from pollution. Through face-to-face surveys on trains and at railway stations nationwide, we investigated public experiences of environmental pollution accidents, perceptions of local environmental risks (focused on air and water quality) and responses to local environmental conditions. By comparing public perceptions with official environmental monitoring data-sets, we concluded that the accuracy of perceptions related to four environmental factors ranged from 40 to 60% at the individual scale. Furthermore, the accuracies increased approximately 2–10% at the county scale and 10–30% at the city scale, highlighting the possible benefits of collective intelligence in helping the public to identify existing environment conditions more accurately. Additionally, despite great concerns about pollution and health, public attitudes toward coping with the dangers of pollution and health risks were found to be indifferent. Our study revealed factors at the individual, social and governmental levels that led to low levels of perception accuracy and response scores. Thereout, we stressed potential pathways to improve the accuracy of public perception and the positivity of responses. The survey results indicate that there is a long way to go before the public is well prepared to cope with the risks of pollution; as a consequence, it is necessary to improve both personal environmental awareness as well as governmental, social and commercial responses to pollution events.     

Influences of individual-level characteristics on risk perceptions to various categories of environmental health and safety risks

Over the last five decades, social science researchers have examined how the public perceives the risks associated with a variety of environmental health and safety (EHS) hazards. The body of literature that has been emerged diverse both in the methodology employed to collect and analyze data and in the subject of study. The findings have confirmed that risk perceptions vary between groups of individuals as well as between categories of EHS risks. However, the extant literature on EHS risk perceptions has failed to provide empirical insights into how risk perceptions can be best explained according to the interplay of both (1) the category of EHS hazard appraised and (2) the prominent individual-level characteristics that best explain observed risk perception differences. This study addresses this deficiency in the literature by providing insights into the individual and cumulative roles that various individual-level variables play in characterizing risk perceptions to various categories of EHS risks including ‘agentic risks’ like street drug use and cigarette smoking, ‘emerging technological risks’ like nanoparticles and cloning, and ‘manufacturing risks’ like air and chemical pollution. Our data are drawn from the 2009 Citizens, Science, and Emerging Technologies national study of United States households that investigated public perceptions of EHS risks, traditional and emerging media use, and various individual characteristics like personal demographics, socioeconomic factors, and perceptual filters. The findings show that some categories of EHS risks like those associated with emerging technologies may be more easily predicted than other categories of risks and that individual-level characteristics vary in their explanative power between risk categories even among a single sample of respondents.     

Looking for a safe haven after fancy thrills: a psychometric analysis of risk perception in alpine tourist destinations

Visitors’ risk perceptions have been found to influence the on‐site behaviour of tourists and their intention to return to a destination or to recommend it to others. The present study analyses the perception of tourism risks in the Tyrol, Austria. Building on the psychometric paradigm, participants (N = 207) assessed 15 vacation risks on nine risk characteristics that are derived from psychometric research and completed with characteristics relevant in a tourism context. Findings suggest that additionally to managing the most likely risks, alpine destinations should be prepared to cope with worst case scenarios such as ‘potable water poisoning’, ‘food poisoning’, ‘breaking of an embankment dam’, ‘rock fall on a village’, ‘cable car accident’ and ‘terrorist attack’. Considering these rather low‐probability risks is of decisive importance since such risks are especially prone to evoke public outrage if they – against all expectations – result in damaging events.     

Management of rainfall-related environmental risks in urban area

Rainfall brings urban residents both benefits, such as water resources, but also adverse risks such as flooding. Additionally, it has been recognized that wet weather run-off discharges pollutants

and transfers chemicals and pathogen bacteria into the aquatic ecosystem. This causes not only deterioration of water quality but also environmental pollution risk. Both the flood risk and environmental pollution risk are treated here as ‘rainfall-related environmental risks’. Although these two kinds of risks are quite different in their characteristics, the main purpose of urban wet weather flow management is how to decrease these risks. Furthermore, these risks have a similar background which is concerned with both the urban structure and the life-style of urban residents. Recently, flood disaster has occurred in the Japanese urban area with increasing frequency causing damage due not only to rainfall intensity, but also the vulnerability of urban structures against heavy storms. Although there has been urban area expansion and a decline in substrate permeability, wet weather flow management in Japan is aimed simply to drain the increased run-off volume quickly. As for the management of hazardous chemicals which might be discharged together with rainfall run-off, this has not been implemented sufficiently. It is necessary to develop a methodology to reduce rainfall-related environmental risks in urban wet weather flow management. In this paper, the possible risk management process and control options of rainfall-related risks will be discussed after a summary of both the similar and differing points between inundation risk and environmental pollution risk. As a result, it is deemed necessary to operate a scheme to raise the rainfall-related environmental risk perception level of urban residents to ensure their participation in risk management.     

Risk perception of mobile communication: a mental models approach

Some lay people confronted with a new base station project fear serious health consequences from the high‐frequency radiation, while experts consider exposure under the current international standards as unproblematic. These conflictive estimations may be attributed to the different mental models of lay people and experts. Less is known about lay people’s knowledge in regard to mobile communication and their intuitive understanding of the associated health risks. An adaptation of the ‘Mental Models Approach’ was used to reveal lay people’s beliefs about mobile communication and to learn more about lay people’s information requirements, potential knowledge gaps, and misconceptions. Through the means of open interviews with Swiss experts (N = 16), lay people (N = 16), and base station opponents (N = 15), different mental models were constructed and evaluated. Comparisons between the expert and the lay groups showed several qualitative differences in all identified knowledge domains. Knowledge gaps in regard to changing exposure magnitudes due to the interaction patterns of cell phones and base stations as well as misconceptions about regulation issues and scientific processes were found in both lay groups. In addition, lack of trust in responsible actors and disaffection with base station location processes were mentioned. The reported qualitative insights may be useful for the improvement of further risk communication tools.     

Examining inequities in children’s environmental health: results of a survey on the risk perceptions and protective actions of new mothers

Young children are more highly exposed and vulnerable to environmental health hazards than adults due to a variety of physiological and behavioural factors. Despite the significant responsibility mothers typically bear in managing their children’s health, little is known about how they perceive and negotiate these risks in their day-to-day lives. To better understand mothers’ environmental health risk perceptions and associated protective actions across socio-economic and geographic contexts, a telephone survey was conducted among new mothers (n = 606) recruited through two Public Health Units in Ontario, Canada. Analyses revealed that approximately half of the respondents were moderately or highly concerned about environmental health risks, ranging in nature from household products to outdoor air contaminants. Factors affecting the likelihood of experiencing concern included lower income and lower levels of perceived control. With regard to protective actions, 43% reported taking three or more actions to reduce environmental health risks to their children, with the likelihood of taking action being negatively affected by factors including low income and first language other than English or French, and positively affected by being a first-time parent (primiparous). This study contributes to our understanding of environmental health risk perceptions and associated protective behaviours among new mothers, and has implications for the development of more context-focused risk management and communication strategies.     

Great deeds or great risks? Scientists’ social representations of nanotechnology

Nanotechnologies are becoming a larger presence in everyday life and are viewed by governments and economic actors as a key area for development. The theory of social representations suggests that specialist views eventually disseminate to shape representations among the public. Yet nanotechnologies remain relatively little known to the general public. The media emphasize potential benefits, while potential risks get less attention. The literature has not yet addressed whether representations by a well-informed population (scientists) are indeed structured in terms of the risk–benefit polarity that dominates research framing to date. We attempted a systematic assessment of how background knowledge about nanotechnology may influence experts’ perception. Study 1 delivered the first demonstration derived from a qualitative analysis confirming the existence of a polarized representation of nanotechnologies, contrasting opportunity (medical, economic, and technological) and risk. Interestingly, risk was distinguished at two levels: that associated with nanomaterial characteristics (toxicity, reactivity) and at the larger scale of impact (health, environment, legislation). Does this polarity indicate a ‘yes, but’ logic (nanotechnology carries opportunity but also risk), or two clusters of specialists (sensitive, respectively, to opportunity or to risk)? Study 2 surveyed a larger sample of experts who self-described their scientific background and role viz. nanotechnology. Role had no influence. Specialists consensually viewed that nanotechnology represents opportunity, but depending on scientific background they did not agree to the same extent that nanotechnology also constitutes a risk. Participants with a physics and chemistry background tended to represent nanotechnologies predominantly in terms of opportunities and not in terms of inherent risks or impacts. In contrast, toxicologists, life and social scientists appeared to explicitly incorporate both benefits and risks in their representation of this new technology. Environmental scientists were a more diverse group, divided between the two patterns of representation.     

How do people perceive graphical risk communication? The role of subjective numeracy

This study aims to evaluate directly how a graphical risk ladder is perceived and how this perception is related to people’s subjective numeracy. Gaze durations and frequencies were used to examine visual attention. Participants (N = 47) appeared to focus on the target risk information, whereas referential information was less attended. Subjective numeracy was negatively correlated with total watching time and the absolute number of gaze events. Results suggest that participants with low subjective numeracy have more difficulty in comprehending the graph, and that they process the graphical information less efficiently than the participants with high subjective numeracy. In addition, the position of referential risks on risk ladders could influence people’s risk perception. Based on these findings, we provide some implications for the design of risk communication graphs and for the use of graphs in informing persons with low subjective numeracy about risks.     

Public perceptions of environmental risk in China

China, as a ‘double risk’ society, is in urgent need for effective environmental risk management systems. Compared with other risks, man-made environmental risks have not been given due weight. Public awareness and perceptions of environmental risks are crucial in all phases of effective risk management. However, little is known about public perceptions of environmental risks in China. To contribute to better understanding of public perception of environmental risk, a questionnaire survey was conducted among university students in Beijing, who represent a group with high level of education and a generally high sensitivity to new information. The results show that even this group has limited knowledge about environmental risks and current risk management systems. Further studies are needed to understand the social construction of environmental risks in China and to seek ways to involve the Chinese public in emergency response and risk management.     

Scientist and public responses to BSE‐related risk: A comparative study

Social studies of risk repeatedly have found substantial divergences in the way that experts/scientists and members of the general public appraise risks associated with health and environmental hazards. However, empirical evidence for these differences remains controversial. A recent review of literature suggests in particular that divergences between experts and lay people may potentially result from confounding socio‐demographic factors. The purpose of the present article is to investigate and to compare how medical scientists and members of the general population reacted to BSE (“mad cow disease”) in France. A sample of 401 scientists belonging to the French Institute of Health and Medical Research (INSERM) and a representative sample of 902 French citizens were asked about their cognitive, affective and behavioural responses to BSE. Results show that non‐scientists tended to express much more concern about BSE‐related risk than scientists, even when socio‐demographic variables were controlled. However, (1) no significant differences were found between these two groups concerning subjective epidemiological predictions, and (2) scientists manifested greater avoidance of beef or beef by‐products avoidance following the BSE epidemic than lay respondents did. The implications of these paradoxical results are discussed.     

A meta‐level analysis of major trends in environmental health risk governance

Internationally but also within countries, large differences exist regarding how environmental health risks (EHRs) are governed. Despite these differences, at a meta‐level some general trends can be discerned that may point to a convergence of EHR governance regimes. One, EHR governance regimes are increasingly taking into account cost‐benefit considerations, sectoral goals outside the health risk domain, public concerns and stakeholder interests in early stages of decision‐making. Two, EHR objectives are increasingly integrated in other, sectoral policies such as land use planning. Three, an increased differentiation of EHR standards is observed (partly as a consequence of the former characteristic). Still little systematic empirical research has been conducted on the dynamics in EHR governance regimes and their causes, on what EHR governance regimes have produced in terms of (perceived) risk reduction and on how these results can be explained. This paper proposes a systematic framework for analysing, explaining and evaluating shifts in EHR governance regimes. The framework in turn is applied to examine and understand the shift towards more integrated and differentiated EHR governance regimes.     

The regulations for indoor air pollution in Japan: a public health perspective

In recent years public health problems caused by indoor air pollution, known as ‘Sick Building Syndrome in housing’, or ‘Sick House Syndrome’ in Japan, have been drawing strong public concern. After conducting extensive exposure assessment, government authorities have taken effective measures to solve the problem. However, as a result of diversification and increase in quantities of industrial chemicals, existing regulations do not cover enough ranges of various potential hazardous chemicals. Hence, the regulations seek to be changed from hazard‐based regulation to a risk‐based one. Good indoor air quality (IAQ), which does not pose unacceptable health risks from all pollutants affecting indoor air, should be ensured for all public people. The objective of this study is to clarify the remaining issues to be solved urgently, related to the regulations to ensure a good IAQ. We reviewed enormous numbers of the existing governmental and industrial voluntary standards and/or guidelines, literature and documents concerning IAQ research in the past 40 years. Our results showed six subjects from those remaining issues. Based on these subjects we created a new scheme to control the IAQ; we especially regarded a comprehensive labeling system as one of the important strategies.     

Understanding expressed low concern and latent concern near a hazardous waste treatment facility

This paper discusses local small town residents’ concerns about risk and safety near a hazardous waste facility at Swan Hills, Alberta, Canada. The majority of the residents studied outwardly express that they have low concern about the facility. The purposes are to both elaborate existing theory that potentially explains low concern and to explore new explanations of low concern in everyday life. Theories or concepts which potentially explain expressed low concern are start-points for this qualitative case study. These include: economic risk theory, psychometric risk theory, cultural risk theory, cognitive dissonance (threat denial), community identity and stigma, and risk attenuation. Thirtyeight in-depth resident interviews involving views of facility risks, as well as community life, are used to better understand the social construction of risk. It is found that despite the fact that 31 residents outwardly insist they have no or low concern about facility risks when first prompted, 11 actually do show latent concerns when probed further, expressed as uncertainty, reservations and doubt. It is argued that juxtaposing the views of insiders against those perceived to be held by outsiders furthers understanding of why facility concern is rarely expressed in such a community. There is a heightened sense of pride and positive community identity manifest as a defensive reaction by insider residents to outsiders who are perceived to hold negative, stigmatizing views of the facility as well as the town. Implications relating to community and industry vigilance as well as the impacts of outsiders sensationalising risk are discussed.     

Neglected and overemphasized risks: the opinions of risk professionals

Research on risks has mainly been devoted to detailed analyses of such risks that are subject to public debate and policy decision making. However, many if not most of the risks that are now the subject of regulation were once neglected. Experts in conjunction with regulators have a crucial role in putting risks on the policy agenda. But what views do experts have on the matter of attention to risks? In order to answer this question risk assessment experts were asked to list the risks they considered to be over‐emphasized, respectively neglected. Radiation risks constituted the largest category of risks reported to be over‐emphasized. Other risks often reported to be over‐emphasized included BSE, GMOs, amalgam, and air traffic. Lifestyle risks were the largest category of risks reported to be neglected. Other risks often listed as neglected included radon (as an exception within the radiation category), road traffic, socio‐economic risks, energy production excluding nuclear power, and local accidents (including fires and workplace accidents). Risks mentioned about equally often as neglected and over‐emphasized included chemicals and crime. There was a correlation between perceived risk and neglect: risks considered to be neglected were also judged as larger. For a comparison, the topics of articles in the journal Risk Analysis from 1991–2000 were categorized into the same risk categories that were used for the questionnaire. The risks most commonly treated in the journal (chemicals and cancer) coincided with the risks which experts in our survey considered to be overemphasized rather than neglected.     

Shifting reactions to risks: a case study

Social science research in the field of risk analysis has emphasised evaluating the magnitude of individuals’ reactions to risks (e.g. strength and salience of concerns, frequency and forcefulness of behaviours that respond to risks). Fewer studies assess the factors that contribute to risk reactions or the types of risks to which reactions are directed (e.g. human health, wildlife health or ecosystem health risks; economic or aesthetic concerns). Theoretical and empirical research on amplification and attenuation of risk (e.g. the Social Amplification of Risk Framework) reveals that the strength of people’s reaction to risks can change markedly over time, as a function of new stimuli. We expand on this foundation to consider here how the types of risks members of the public react to may also shift over the course of their exposure to a hazard, particularly as more information about the hazard becomes available. This case study of risk reactions related to an outbreak of type E botulism in north-western Michigan, USA, demonstrates that the types of risks people react to can change substantially over time. We identify factors that contributed to changes in types of risk reactions, and then consider how these factors potentially distinguish the botulism outbreak from other outbreaks. This case study suggests that, under certain conditions, risk communication can meaningfully alter the types of risks that people react to in response to an environmental hazard. We discuss implications of these findings for risk research, risk communication and environmental conservation.     

Trust and the risk of consuming polluted water in Shanghai,China

It is commonly understood that political trust reduces public perceptions of various kinds of risk. However, this knowledge largely comes from research conducted in liberal democratic states, and so may have little explanatory power in China. Though it has an authoritarian government, China has enjoyed relatively high levels of political trust, and so is a unique case from which to advance knowledge about political trust and risk perception. We describe the relationship between risk perception and political trust in China through analysis of results from a survey of 5007 residents in Shanghai asking about people’s perceptions of the risk of consuming tap water (a key public good), and their levels of trust in the public water authorities. Findings reveal that political trust in general, and trust in the perceived fairness, honesty and capability of water authorities significantly reduces the perception of the risk of consuming tap water. This suggests that the inverse relationship between trust and risk perception applies regardless of whether a society is democratic or authoritarian.