Abstracts (PDF file, 1.8MB) - Society for Risk Analysis
Abstracts (PDF file, 1.8MB) - Society for Risk Analysis
Abstracts (PDF file, 1.8MB) - Society for Risk Analysis
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SRA 2013 Annual Meeting <strong>Abstracts</strong><br />
P.138 Kuiken, T*; Quadros, M; Woodrow Wilson Center,<br />
Virginia Tech; todd.kuiken@wilsoncenter.org<br />
Keeping track of nanotechnology in your everyday life:<br />
The Nanotechnology Consumer Products Inventory 2.0<br />
The Woodrow Wilson International Center <strong>for</strong> Scholars and the<br />
Project on Emerging Nanotechnologies created the<br />
Nanotechnology Consumer Product Inventory (CPI), in 2005.<br />
This first-of-its-kind inventory tracks consumer products<br />
claiming to contain nanomaterials and has become one of the<br />
most frequently cited resources showcasing the widespread<br />
applications of nanotechnology. The CPI now contains 1,628<br />
consumer products that have been introduced to the market<br />
since 2005, representing a 24 percent increase since the last<br />
update in 2010. In the years since its launch, the CPI has been<br />
criticized because of its lack of scientific data. To address some<br />
of these concerns, this update adds qualitative and quantitative<br />
descriptors, such as size, concentration, and potential exposure<br />
routes <strong>for</strong> the nanomaterial’s contained in consumer products.<br />
It also includes published scientific data related to those<br />
products, where available, and adds a metric to assess the<br />
reliability of the data on each entry. In addition, the newly<br />
re-launched inventory seeks to address scientific uncertainty<br />
with contributions from those involved with nanomaterial<br />
production, use, and analysis. This is the first major overhaul of<br />
the inventory, since it was launched in 2005. The re-launched<br />
inventory seeks to “crowd source” expertise in an ef<strong>for</strong>t to<br />
create an inventory with more accurate in<strong>for</strong>mation on<br />
consumer products. Registered users are encouraged to submit<br />
relevant data pertaining to nanoparticle function, location, and<br />
properties; potential exposure pathways; toxicity; and lifecycle<br />
assessment, as well as add product data and in<strong>for</strong>mation on<br />
new products. The Virginia Tech Center <strong>for</strong> Sustainable<br />
Nanotechnology worked with the Wilson Center to redevelop<br />
the inventory to improve the reliability, functionality, and<br />
scientific credibility of this database. Virginia Tech’s Institute<br />
<strong>for</strong> Critical Technology and Applied Science provided funding<br />
<strong>for</strong> the ef<strong>for</strong>t.<br />
P.89 Kumagai, Y*; Hosono, H; Sekizaki, T; the University of<br />
Tokyo; 2791388998@mail.ecc.u-tokyo.ac.jp<br />
This is the title; Investigating “consumer awareness” in<br />
evaluating food safety hazards related to beef in Japan<br />
In an emergency situation, effective risk communication may<br />
reduce unnecessary public concern and consequential<br />
behaviors. In 2011, Japan has two crisis events <strong>for</strong> beef-related<br />
health hazards (enterohemorrhagic Escherichia coli O111 and<br />
O157 and radioactive contamination) in the area of food safety.<br />
In this situation, Japanese consumers become increasingly<br />
aware of the risks of health hazards related to beef. The aim of<br />
this study is to investigate “consumer awareness” made an<br />
influence on evaluating health hazards in an emergency<br />
situation. We conducted the internet-based questionnaire<br />
survey on October in 2011. The survey had 3,957 respondents.<br />
The following subjects were asked about; (1)where each health<br />
hazard related to beef (“enterohemorrhagic E. coli (EHEC)”,<br />
“Salmonella spp.”, “Campylobacter spp.” “bovine spongi<strong>for</strong>m<br />
encephalopathy (BSE)”, “radioactive substances”, “antibiotic<br />
residues”, and ”cloned animal”) was ranked in descending<br />
order of risks, (2)the reasons why respondents chose the<br />
highest health hazard. We analyzed the words into free<br />
descriptions of the reasons, categorized the words into 8 broad<br />
types (“severity”, “probability of occurrences”, “anxiety and<br />
fear”, “adverse effects <strong>for</strong> infants”, “reliability of governmental<br />
management”, “avoidance by oneself”, “attention to media”,<br />
and “production of are”) as “consumer awareness” and<br />
explored factors made an influence on evaluating health<br />
hazards. In the result, “consumer awareness” in risk ranking<br />
was confirmed as follows; (1)regarding EHEC and Salmonella<br />
spp., “severity”, “probability of occurrence”, and “anxiety and<br />
fear”, (2)regarding BSE, “anxiety and fear”, “severity” and<br />
“avoidance by oneself”, (3)regarding radioactive substances,<br />
“reliability of governmental management”, “anxiety and fear”,<br />
“attention to media” and “adverse effect <strong>for</strong> infants”. The result<br />
of this study implied that “reliability of governmental<br />
management” is very important factor <strong>for</strong> emerging hazards<br />
like radioactive substances.<br />
T2-D.1 Kundu, A; University of Cali<strong>for</strong>nia, Davis;<br />
akundu@ucdavis.edu<br />
ESTIMATING RISK OF INTESTINAL NEMATODE<br />
INFECTION FROM EXPOSURE TO AMBIENT WATERS<br />
USING QUANTITATIVE MICROBIAL RISK ASSESSMENT<br />
(QMRA) IN SALTA, ARGENTINA<br />
The main objectives of this research were to establish risks<br />
related to (i) direct or indirect incidental ingestion of water in<br />
Arenales river in three scenarios: primary contact, children and<br />
secondary contact; (ii) consumption of uncooked vegetables<br />
irrigated with A. lumbricoides contaminated water; and (iii)<br />
incidental ingestion of irrigated water by farmers working in<br />
the fields. The study area focused on the Arias-Arenales river,<br />
which is in the northwestern region of Salta province in<br />
Argentina. Eleven locations on the Arenales river were selected<br />
<strong>for</strong> a thirteen-month monitoring study. A quantitative microbial<br />
risk assessment (QMRA), based on observed nematode density,<br />
was per<strong>for</strong>med to calculate the annual probability of helminth<br />
infection in various scenarios associated with direct or indirect<br />
exposure to Ascaris lumbricoides in surface waters. The highest<br />
estimated mean risk from direct or indirect ingestion of surface<br />
water per person per year (pppy) from a single exposure<br />
scenario was found in children (21.23%), followed by adults<br />
(12.49%) and secondary exposure (1.54%). We estimated the<br />
mean annual risks from consumption of raw (uncooked and<br />
unpeeled) vegetables irrigated with polluted water as a worst<br />
case scenario. The mean risk was highest in lettuce (0.659%)<br />
and lowest in cucumber (0.011%) <strong>for</strong> the total population. A<br />
similar pattern was found <strong>for</strong> the consumer-only population as<br />
well. Here, the risks from consumption of vegetables were<br />
0.27% <strong>for</strong> cucumbers and 1.54% <strong>for</strong> lettuce. The annual risk of<br />
infection in farmers due to accidental ingestion of irrigated<br />
water was 1.06%. The risk varied from as low as 0.005% to a<br />
high value of 41% in farmers working in the field without using<br />
any protective clothing like gloves, rain boots and so <strong>for</strong>th. We<br />
also estimated risks associated with four scenarios <strong>for</strong> treating<br />
left-censored observations: (i) one-half the detection limit (DL)<br />
was assumed <strong>for</strong> the censored data; (ii) DL was assumed <strong>for</strong><br />
censored data; (iii) bounding <strong>for</strong> the censored observations; and<br />
(iv) observations with zeroes.<br />
P.88 Kuroda, Y*; Iwamitsu, Y; Takemura, K; Ban, N; Sakura, O;<br />
Sakata, N; Tsubono, K; Nakagawa, K; The University of Tokyo,<br />
Kitasato University, and Waseda University;<br />
kuroday-rad@h.u-tokyo.ac.jp<br />
Effect of in<strong>for</strong>mation trustworthiness on cancer risk<br />
perception after a nuclear disaster<br />
This study examines the effect of trustworthiness on risk<br />
perception in residents of Tokyo and Fukushima after the<br />
Fukushima Daiichi nuclear disaster. A cross-sectional study was<br />
conducted among 2000 residents of Tokyo and Fukushima<br />
(1000 per city), selected by stratified random sampling.<br />
Participants anonymously filled out a questionnaire on 8 cancer<br />
risk factors: Smoking, Drinking, Poor Diet and Lack of Exercise,<br />
Obesity, Stress, Food Additives, Low Vegetable Consumption,<br />
and Radiation Exposure. From these 8 factors, participants<br />
were asked to select and rank the top3 (1=highest risk). They<br />
also rated their trustworthiness in sources of in<strong>for</strong>mation about<br />
radiation on a 5-point scale (1 = Not Reliable, 5 = Reliable).<br />
This study was approved by the Institutional Review Board at<br />
the University of Tokyo. Responses were obtained from 554<br />
participants from Fukushima (mean age = 52.8 ± 16.3 y) and<br />
465 participants from Tokyo (mean age = 51.6 ± 15.8 y).<br />
Participants from both cities rated Smoking (40.7%), Radiation<br />
Exposure (31.5%), and Stress (17.7%) as factors with highest<br />
risks <strong>for</strong> cancer. Radiation was rated significantly higher as a<br />
risk factor by participants from Fukushima than participants<br />
from Tokyo (X2 = 6.21, df=1, p < .01). Sources of in<strong>for</strong>mation<br />
about radiation were classified as “Reliable” (score of 5 or 4)<br />
and “Unreliable” (scores of 3, 2, or 1). A chi-square test<br />
revealed that those receiving in<strong>for</strong>mation from an unreliable<br />
source were more likely to report radiation as a higher risk<br />
factor (X2 = 6.81, df=1, p < .01). Trustworthiness is<br />
significantly related to perception of radiation risk; thus,<br />
building trustworthiness is the key issue to address <strong>for</strong> effective<br />
radiation risk communication.<br />
December 8-11, 2013 - Baltimore, MD