Journal of Environmental Health 2014 Abstracts - page 15

Abstract
Combined exposure to secondhand (SHS) smoke and radon increases lung cancer
risk 10-fold. The authors assessed the feasibility and impact of a brief home screening
and environmental feedback intervention to reduce radon and SHS (Freedom from Radon
and Smoking in the Home [FRESH]) and measured perceived risk of lung cancer and
synergistic risk perception (SHS x radon). Participants (
N
= 50) received home radon and
SHS kits and completed baseline surveys. Test results were shared using an intervention
guided by the Teachable Moment Model. Half of the participants completed online
surveys two months later. Most (76%) returned the radon test kits; 48% returned SHS
kits. Of the returned radon test kits, 26% were >4.0 pCi/L. Of the returned SHS kits, 38%
had nicotine >.1 μg/m
3
. Of those with high radon, more than half had contacted a
mitigation specialist or planned contact. Of those with positive air nicotine, 75% had
adopted smoke-free homes. A significant increase occurred in perceived risk for lung
cancer and synergistic risk perception after FRESH.
Urinary Metabolites of DEET After Dermal Application on Child and Adult
Subjects
Jia-Ni Tian, MS,
Department of Public Health
,
Tzu Chi University
,
Institute of
Biotechnology and Pharmaceutical Research
,
National Health Research Institutes
Lih-Ming Yiin, PhD,
Department of Public Health, Tzu Chi University
Abstract
Urinary metabolites of DEET of 17 children (5–7 years of age) and 9 adults (23–
25 years of age) were examined in the study described in this article. Urine samples were
collected from each subject within eight hours after a single dermal application of 10 mL
12% DEET-containing insect repellent. Two metabolites, m-diethylaminocarbonyl
benzoic acid (R3N0) and N-ethyl-m-toluamide (R0N1), with unchanged DEET, were
identified in the urine. The major metabolite was R3N0, which was 78.2% and 46.1% of
the total DEET metabolites from children and adults, respectively, indicating that the
pathway of ring methyl oxidation predominated. The recovered DEET metabolites were
observed significantly more from children (1,116 μg) than from adults (446.2 μg) (
p
<
.001). The difference in dermal absorption, albeit primarily attributed to DEET loading,
was found to be related to height by regression analysis. The inverse association between
height and dermal absorption of DEET suggests that shorter individuals (i.e., children)
are subjected to dermal uptake of DEET. To avoid unnecessary exposure, parents need to
be cautious when applying DEET-containing insect repellent on children.
Framework for Handling Asbestos After a Tidal Surge
Ben Ryan, MPH,
Queensland Health
Ian Kuhl,
Kuhl-Meadows
Rebecca Ware,
Queensland Health
Abstract
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