English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Although there are few published studies of residential exposures to environmental contaminants in Nepal, theremay be substantial exposures to multiple contaminants in Nepali households. Pesticides, which can be harmful tohuman health, are often used by Nepali farmers, and many farmers lack an understanding of the appropriate proceduresfor the safe use, handling and storage of pesticides. In addition, many Nepali families use wood burning stoves, leadingto the potential for exposure to polycyclic aromatic hydrocarbons from wood smoke. This study measured the levelsof four organophosphate pesticides, 22 organochlorine pesticides, and over thirty polycyclic aromatic hydrocarbonsin house dust from two rural Nepali villages. Floor dust samples were collected in early summer from a total of 18households, including nine households in the village of Keraghari, in Kavrepalanchok District, and nine homes in thevillage of Kafaldanda, in Lalitpur District. These villages have similar environmental features and are located at analtitude of approximately 2,000 meters. In these two villages, many of the homes have improved cookstoves to reducesmoke levels in the homes. The dust samples were collected using pre-ashed glass fiber filter cloths saturated withisopropyl alcohol. In both villages, the organochlorine pesticide that was present in the highest concentrations wasthe DDT metabolite p,p?-dichlorodiphenyldichloroethylene (4,4?-DDE). Among the organophosphates, methyl parathionaccounted for much of the organophosphate mass detected. Across both villages, the median total organochlorinepesticide value (287 ng/m2) was 5-fold higher than the median total organophosphate pesticide value (54.3 ng/m2).The median total polycyclic aromatic hydrocarbon concentration in house dust from both villages was 14,700 ng/m2.Interventions are needed to improve safe handling and use of pesticides in Nepali villages. Additional studies are alsoneeded to assess the extent to which improved cookstoves reduce polycyclic aromatic hydrocarbon exposure, duringboth winter and summer

journal of environmental and analytical toxicology

Measurement of Organophosphate Pesticides, Organochlorine Pesticides, and Polycyclic Aromatic Hydrocarbons in Household Dust from Two Rural Villages in Nepal