2026-10-14T14:23:49Z https://www.scidb.cn/oai

10.57760/sciencedb.IGA.0019m 2026-08-31T11:24:56Z

2026-08-31 Spatial distribution, sources apportionment and risk assessment of heavy metals in the Changchun black soil area, China doi:10.57760/sciencedb.iga.0019m en This study analyzed the spatial distribution, sources, and ecological and health risks of seven heavy metals in 99 agricultural topsoil samples from the Changchun black soil area. Pb, Zn, and Ni were mainly derived from natural sources, whereas Cd, Cr, and As were primarily associated with agricultural production, industrial activities, and transportation. Overall ecological and health risks were low, although moderate ecological risks occurred at several sites. Agricultural soils; Heavy metals; Organic matter 张丽梅 宋晓桐 PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank