Low-Level Groundwater Atrazine in High Atrazine Usage Nebraska Counties: Likely Effects of Excessive Groundwater Abstraction

International Journal of Environmental Research and Public Health

Olufemi Abimbola¹  Shannon Bartelt-Hunt²  Eleanor G. Rogan³  Moses New-Aaron³  Azar Abadi³  Jesse E. Bell³  Raheleh Mohammadi⁴  Oluwaseun Famojuro⁴  Zaeema Naveed⁵ 

[1] Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE 68583-0726, USA;Department of Civil and Environmental Engineering, University of Nebraska-Lincoln, Omaha, NE 68182-0178, USA;Department of Environmental Health, Occupational Health and Toxicology, University of Nebraska Medical Center, Omaha, NE 68198, USA;Department of Epidemiology, University of Nebraska Medical Center, Omaha, NE 68198, USA;School of Population and Public Health, The University of British Columbia, Vancouver, BC V6T 1Z3, Canada;

关键词: groundwater;    atrazine;    abstraction;    cancers;    climate;    Nebraska;   

DOI  :  10.3390/ijerph182413241

来源: DOAJ

【 摘 要 】

Recent studies observed a correlation between estrogen-related cancers and groundwater atrazine in eastern Nebraska counties. However, the mechanisms of human exposure to atrazine are unclear because low groundwater atrazine concentration was observed in counties with high cancer incidence despite having the highest atrazine usage. We studied groundwater atrazine fate in high atrazine usage Nebraska counties. Data were collected from Quality Assessed Agrichemical Contaminant Nebraska Groundwater, Parameter–Elevation Regressions on Independent Slopes Model (PRISM), and water use databases. Descriptive statistics and cluster analysis were performed. Domestic wells (59%) were the predominant well type. Groundwater atrazine was affected by well depth. Clusters consisting of wells with low atrazine were characterized by excessive groundwater abstraction, reduced precipitation, high population, discharge areas, and metropolitan counties. Hence, low groundwater atrazine may be due to excessive groundwater abstraction accompanied by atrazine. Human exposure to atrazine in abstracted groundwater may be higher than the estimated amount in groundwater.

【 授权许可】

Unknown