2023
DOI: 10.1016/j.envpol.2022.120592
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Origins of groundwater nitrate in a typical alluvial-pluvial plain of North China plain: New insights from groundwater age-dating and isotopic fingerprinting

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Cited by 16 publications
(4 citation statements)
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“…The highest concentrations of NO3 − were 42 mg L −1 in 2008, 49.3 mg L −1 in 2015, and 12.1 mg L −1 in 2018. The increase in NH4 + and NO3 − concentrations align with the findings of another study [22]. That study, focused on the impact of rapid urbanization, demonstrated a notable shift in NO3 − sources from inorganic fertilizers toward manure and sewage, the study revealed that nitrogen input from agricultural development and urbanization were the primary controlling factors contributing to NO3 − in their study area.…”
Section: General Characteristic Of Gw Physiochemistrysupporting
confidence: 81%
“…The highest concentrations of NO3 − were 42 mg L −1 in 2008, 49.3 mg L −1 in 2015, and 12.1 mg L −1 in 2018. The increase in NH4 + and NO3 − concentrations align with the findings of another study [22]. That study, focused on the impact of rapid urbanization, demonstrated a notable shift in NO3 − sources from inorganic fertilizers toward manure and sewage, the study revealed that nitrogen input from agricultural development and urbanization were the primary controlling factors contributing to NO3 − in their study area.…”
Section: General Characteristic Of Gw Physiochemistrysupporting
confidence: 81%
“…Usually, agricultural production to satisfy the demand of the population is increased by applying high amounts of synthetic fertilizers, which in turn causes high nitrate levels in the groundwater 1 and phosphate fertilizers that generate contamination with cadmium (Cd) due to the presence of Cd minerals in the phosphorite and apatite rocks used in the production of these fertilizers. 2 , 3 , 4 , 5 , 6 , 7 Heavy metals such as Cd can contaminate irrigation waters, either naturally or due to human activities.…”
Section: Introductionmentioning
confidence: 99%
“…The demand for groundwater is increasing and the quality of groundwater is deteriorating due to the pollution emissions. The groundwater level has decreased sharply due to drought and over-exploitation, accompanied by the excessive nitrate loading and expansion of saline-alkaline land area [15][16][17]. Human activities lead to a dramatic increase in the groundwater NO 3 − concentration in pluvial fans of the Hutuo River, which reaches 124.4 mg/L [17].…”
Section: Introductionmentioning
confidence: 99%