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Martha Harnly   Dr.  Research or Laboratory Scientist 
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Martha Harnly published an article in March 2011.
Top co-authors See all
Alan Hubbard

572 shared publications

Centre for Glaciology, Department of Geography and Earth Sciences; Aberystwyth University; Aberystwyth UK

Thomas E. McKone

159 shared publications

School of Public Health, University of California, Berkeley, USA

P Reynolds

153 shared publications

Cancer Prevention Institute of California, Berkeley, USA

R.B. Gunier

72 shared publications

Center for Environmental Research and Children’s Health, School of Public Health, University of California, 1995 University Avenue, Berkeley, California 94720, United States

Roberto Bravo

68 shared publications

Tillotts Pharma AG, Rheinfelden, Switzerland

Publication Record
Distribution of Articles published per year 
(2000 - 2011)
Publications See all
Article 0 Reads 44 Citations Pesticides in house dust from urban and farmworker households in California: an observational measurement study. Lesliam Quirós-Alcalá, Asa Bradman, Marcia Nishioka, Martha ... Published: 16 March 2011
Environmental Health, doi: 10.1186/1476-069X-10-19
DOI See at publisher website
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Studies report that residential use of pesticides in low-income homes is common because of poor housing conditions and pest infestations; however, exposure data on contemporary-use pesticides in low-income households is limited. We conducted a study in low-income homes from urban and agricultural communities to: characterize and compare house dust levels of agricultural and residential-use pesticides; evaluate the correlation of pesticide concentrations in samples collected several days apart; examine whether concentrations of pesticides phased-out for residential uses, but still used in agriculture (i.e., chlorpyrifos and diazinon) have declined in homes in the agricultural community; and estimate resident children's pesticide exposures via inadvertent dust ingestion. In 2006, we collected up to two dust samples 5-8 days apart from each of 13 urban homes in Oakland, California and 15 farmworker homes in Salinas, California, an agricultural community (54 samples total). We measured 22 insecticides including organophosphates (chlorpyrifos, diazinon, diazinon-oxon, malathion, methidathion, methyl parathion, phorate, and tetrachlorvinphos) and pyrethroids (allethrin-two isomers, bifenthrin, cypermethrin-four isomers, deltamethrin, esfenvalerate, imiprothrin, permethrin-two isomers, prallethrin, and sumithrin), one phthalate herbicide (chlorthal-dimethyl), one dicarboximide fungicide (iprodione), and one pesticide synergist (piperonyl butoxide). More than half of the households reported applying pesticides indoors. Analytes frequently detected in both locations included chlorpyrifos, diazinon, permethrin, allethrin, cypermethrin, and piperonyl butoxide; no differences in concentrations or loadings were observed between locations for these analytes. Chlorthal-dimethyl was detected solely in farmworker homes, suggesting contamination due to regional agricultural use. Concentrations in samples collected 5-8 days apart in the same home were strongly correlated for the majority of the frequently detected analytes (Spearman ρ = 0.70-1.00, p < 0.01). Additionally, diazinon and chlorpyrifos concentrations in Salinas farmworker homes were 40-80% lower than concentrations reported in samples from Salinas farmworker homes studied between 2000-2002, suggesting a temporal reduction after their residential phase-out. Finally, estimated non-dietary pesticide intake for resident children did not exceed current U.S. Environmental Protection Agency's (U.S. EPA) recommended chronic reference doses (RfDs). Low-income children are potentially exposed to a mixture of pesticides as a result of poorer housing quality. Historical or current pesticide use indoors is likely to contribute to ongoing exposures. Agricultural pesticide use may also contribute to additional exposures to some pesticides in rural areas. Although children's non-dietary intake did not exceed U.S. EPA RfDs for select pesticides, this does not ensure that children are free of any health risks as...
Article 0 Reads 21 Citations Pesticides in Dust from Homes in an Agricultural Area Martha E. Harnly, Asa Bradman, Marcia Nishioka, Thomas E. Mc... Published: 01 December 2009
Environmental Science & Technology, doi: 10.1021/es9020958
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PubMed View at PubMed
Article 0 Reads 12 Citations Merging Models and Biomonitoring Data to Characterize Sources and Pathways of Human Exposure to Organophosphorus Pestici... Thomas E. McKone, Rosemary Castorina, Martha E. Harnly, Yu K... Published: 01 May 2007
Environmental Science & Technology, doi: 10.1021/es0618447
DOI See at publisher website
Article 1 Read 34 Citations Organophosphate Urinary Metabolite Levels during Pregnancy and after Delivery in Women Living in an Agricultural Communi... Asa Bradman, Brenda Eskenazi, Dana B. Barr, Roberto Bravo, R... Published: 18 July 2005
Environmental Health Perspectives, doi: 10.1289/ehp.7894
DOI See at publisher website
Article 1 Read 22 Citations Cumulative organophosphate pesticide exposure and risk assessment among pregnant women living in an agricultural communi... Rosemary Castorina, Asa Bradman, Thomas E. McKone, Dana B. B... Published: 01 October 2003
Environmental Health Perspectives, doi: 10.1289/ehp.5887
DOI See at publisher website
Article 0 Reads 14 Citations Childhood Cancer and Agricultural Pesticide Use: An Ecologic Study in California Peggy Reynolds, Julie Von Behren, Robert B. Gunier, Debbie E... Published: 14 February 2002
Environmental Health Perspectives, doi: 10.1289/ehp.02110319
DOI See at publisher website