Health risk assessment of nitrate pollution of drinking groundwater in rural areas of Suihua, China

Abstract

In order to investigate the health risks of NO3− in rural drinking groundwater in Suihua, China and provide a basis for healthy drinking water, 40 sets of groundwater samples were collected in the Suihua area, and the average concentration of nitrate in the study area was 71.66 mg/L, statistical analysis software (SPSS19), Hydrogeochemical Analysis Software (AqQA) and groundwater pollution analysis software were used. Through water sample collection, chemical analysis and construction of human health risk model (HHRA), a qualitative and quantitative assessment of NO3− health risk was carried out for people of different ages and sexes, and it was concluded that there was NO3− pollution health risk in rural drinking groundwater in Suihua. Health risk level: infants > children > adult females > adult males. The evaluation provides a scientific basis for the prevention and control of NO3− pollution in groundwater and new ideas for preventing human health risks. HIGHLIGHTS The study identified the distribution pattern of nitrate in rural drinking groundwater in the Suihua area, providing a basis for preventing excessive use of fertilizers and pesticides.; The chemical characteristics of groundwater in the study area were reflected and described through the Durov plot.; A HHRA was first constructed in the Suihua area to evaluate the level of health risk in the study area.;

Keywords

• china
• drinking groundwater
• groundwater quality
• human health risk assessment
• nitrate pollution