Relationship between nitrate, heavy metal, and sterols contents in Japanese agricultural soils with risk of groundwater pollution
Nakagawa, Kei LU
; Islam, M Shahidul
; Hussain Shah, Syed Shabbar
; Li, Zhuolin
; Takao, Yuji
and Berndtsson, Ronny
LU
(2024)
In Chemosphere
p.142335-142335
- Abstract
In Japanese agricultural lands, nitrate-nitrogen contamination of soil and groundwater often occurs due to the application of livestock excrements and compost. Therefore, rural soils in Japan were sampled and analyzed for nitrate-nitrogen leaching, heavy metal content, and sterols associated with livestock excrement and compost to calculate contamination risk indicators. The results were analyzed using self-organizing maps and cluster analysis. Nitrate-nitrogen content using water extraction was detected in most of the sampled soils. In addition, many samples from areas that were already severely contaminated with nitrate-nitrogen showed particularly high concentrations. Coprostanol, an indicator of fecal contamination, was detected in... (More)
In Japanese agricultural lands, nitrate-nitrogen contamination of soil and groundwater often occurs due to the application of livestock excrements and compost. Therefore, rural soils in Japan were sampled and analyzed for nitrate-nitrogen leaching, heavy metal content, and sterols associated with livestock excrement and compost to calculate contamination risk indicators. The results were analyzed using self-organizing maps and cluster analysis. Nitrate-nitrogen content using water extraction was detected in most of the sampled soils. In addition, many samples from areas that were already severely contaminated with nitrate-nitrogen showed particularly high concentrations. Coprostanol, an indicator of fecal contamination, was detected in more than half of the samples. The main source of nitrate-nitrogen contamination in these areas is livestock excrement and compost. Self-organization maps showed that areas with high nitrate-nitrogen contamination also corresponded to areas with high copper and zinc soil contents. The self-organization maps and cluster analysis resulted in five clusters: a nitrate-contaminated group mainly originating from livestock excrement and compost, a heavy metal-contaminated group, a general group, a nitrate-contaminated group mainly originating from chemical fertilizers, and a contaminated group with potentially hazardous substances requiring attention. Authorities and decision-makers can use the results to prioritize areas requiring remediation.
(Less)
- author
- Nakagawa, Kei
LU
; Islam, M Shahidul
; Hussain Shah, Syed Shabbar
; Li, Zhuolin
; Takao, Yuji
and Berndtsson, Ronny
LU
- organization
- publishing date
- 2024-05-14
- type
- Contribution to journal
- publication status
- epub
- subject
- in
- Chemosphere
- pages
- 142335 - 142335
- publisher
- Elsevier
- external identifiers
-
- pmid:38754494
- scopus:85194560892
- ISSN
- 1879-1298
- DOI
- 10.1016/j.chemosphere.2024.142335
- language
- English
- LU publication?
- yes
- additional info
- Copyright © 2024. Published by Elsevier Ltd.
- id
- 678e9853-e095-449a-9f0d-690d28de6ef1
- date added to LUP
- 2024-05-21 12:38:36
- date last changed
- 2024-08-05 09:04:09
@article{678e9853-e095-449a-9f0d-690d28de6ef1,
abstract = {{<p>In Japanese agricultural lands, nitrate-nitrogen contamination of soil and groundwater often occurs due to the application of livestock excrements and compost. Therefore, rural soils in Japan were sampled and analyzed for nitrate-nitrogen leaching, heavy metal content, and sterols associated with livestock excrement and compost to calculate contamination risk indicators. The results were analyzed using self-organizing maps and cluster analysis. Nitrate-nitrogen content using water extraction was detected in most of the sampled soils. In addition, many samples from areas that were already severely contaminated with nitrate-nitrogen showed particularly high concentrations. Coprostanol, an indicator of fecal contamination, was detected in more than half of the samples. The main source of nitrate-nitrogen contamination in these areas is livestock excrement and compost. Self-organization maps showed that areas with high nitrate-nitrogen contamination also corresponded to areas with high copper and zinc soil contents. The self-organization maps and cluster analysis resulted in five clusters: a nitrate-contaminated group mainly originating from livestock excrement and compost, a heavy metal-contaminated group, a general group, a nitrate-contaminated group mainly originating from chemical fertilizers, and a contaminated group with potentially hazardous substances requiring attention. Authorities and decision-makers can use the results to prioritize areas requiring remediation.</p>}},
author = {{Nakagawa, Kei and Islam, M Shahidul and Hussain Shah, Syed Shabbar and Li, Zhuolin and Takao, Yuji and Berndtsson, Ronny}},
issn = {{1879-1298}},
language = {{eng}},
month = {{05}},
pages = {{142335--142335}},
publisher = {{Elsevier}},
series = {{Chemosphere}},
title = {{Relationship between nitrate, heavy metal, and sterols contents in Japanese agricultural soils with risk of groundwater pollution}},
url = {{http://dx.doi.org/10.1016/j.chemosphere.2024.142335}},
doi = {{10.1016/j.chemosphere.2024.142335}},
year = {{2024}},
}