Journal of Environmental Health 2014 Abstracts - page 9

Claudio J. Struchiner,
Program of Scientific Computation
,
FIOCRUZ
Eduardo Massad, MD,
School of Medicine, University of São Paulo, London School of
Hygiene and Tropical Medicine
Effectiveness and Acceptance of Total Release Insecticidal Aerosol Cans as a
Control Measure in Reducing Dengue Vectors
Hsiu-Hua Pai, PhD,
Department of Kinesiology, Health, and Leisure Studies
,
National
University of Kaohsiung
Err-Lieh Hsu,
Department of Entomology, National Taiwan University
Abstract
The effectiveness of regular application of insecticidal fogging in reducing
dengue is questionable, since delays occur between peak time of outbreak and insecticide
administrations. Moreover, many residents do not accept indoor application because of
concern about insecticide contamination of household items. The study described in this
article was designed to evaluate the effectiveness and acceptance of insecticidal aerosol
cans to reduce dengue vectors inside and outside of homes. Residents in Kaohsiung City
of South Taiwan were provided with two formulations of aerosol cans (permethrin
3.750% weight/weight [w/w] and cypermethrin 1.716% w/w) and were requested to use
these aerosol cans. Although the indoor ovitrap index of the permethrin group returned to
the original level in week 3, the index of the cypermethrin group decreased 60% to 20%.
The residents accepted the insecticidal aerosol cans but complained of unfavorable
effects caused by traditional insecticidal fogging. Results indicate that the insecticidal
aerosol cans may serve as a supplementary household control measure for dengue vectors
during the time period between the peak of outbreak and the administration of
government-organized insecticide fogging.
Acute Air Pollution–Related Symptoms Among Residents in Chiang Mai, Thailand
Phongtape Wiwatanadate, MD, PhD
,
Department of Community Medicine
,
Chiang Mai
University
Abstract
Open burnings (forest fires, agricultural, and garbage burnings) are the major
sources of air pollution in Chiang Mai, Thailand. A time series prospective study was
conducted in which 3,025 participants were interviewed for 19 acute symptoms with the
daily records of ambient air pollutants: particulate matter less than 10 µm in size (PM
10
),
carbon monoxide (CO), nitrogen dioxide (NO
2
), sulfur dioxide (SO
2
), and ozone (O
3
).
PM
10
was positively associated with blurred vision with adjusted odds ratio (
OR
) of
1.009. CO was positively associated with lower lung and heart symptoms with adjusted
OR
s of 1.137 and 1.117. NO
2
was positively associated with nosebleed, larynx
symptoms, dry cough, lower lung symptoms, heart symptoms, and eye irritation with the
range of adjusted
OR
s (ROAORs) of 1.024 to 1.229. SO
2
was positively associated with
swelling feet, skin symptoms, eye irritation, red eyes, and blurred vision with ROAORs
1,2,3,4,5,6,7,8 10,11,12,13,14,15,16,17,18,19,...59
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