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However, few investigations focus on small tributaries of the lakes, despite the ubiquity and potential local importance of these runoffs. Thus, the labile sediments NH4+-N, NO3\u2212-N, PO43\u2212, Fe2+, and S2\u2212 in black odorous runoff at Wuxi were overall analyzed at high resolution using diffusive gradients in thin films (DGT). The variations in labile N, P, Fe, and S distribution profiles at different sampling sites indicated high heterogeneity in sediments. The concentrations of labile P, Fe, and S showed synchronous variation from the sediment-water interface (SWI) up to \u221220 mm along sediment profiles. Moreover, there existed a significant positive correlation among labile P, Fe, and S concentrations (p &lt; 0.05), which might represent typical odor compounds\u2019 FeS and H2S synchronous release process in urban runoff. Furthermore, the apparent diffusion fluxes of labile P, Fe, and S across the SWI were all released upward, while fluxes of NH4+-N and NO3\u2212-N release downward, indicating the sediments act as source and sink of P and N, respectively. Sediments\u2019 potential for endogenous P and N fractions release results in the black\u2212odorous water, and sediment finally abouchement the Taihu, which intensifies further lake eutrophication phenomenon.<\/jats:p>","DOI":"10.3390\/ijerph192013240","type":"journal-article","created":{"date-parts":[[2022,10,17]],"date-time":"2022-10-17T00:04:55Z","timestamp":1665965095000},"page":"13240","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["In Situ Simultaneous Analysis of Nitrogen and Phosphorus Migration in Urban Black Odorous Runoff"],"prefix":"10.3390","volume":"19","author":[{"given":"Ying","family":"Chen","sequence":"first","affiliation":[{"name":"School of Environment, Nanjing Normal University, Nanjing 210023, China"},{"name":"Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China"},{"name":"Jiangsu Engineering Laboratory of Water and Soil Eco-Remediation, Nanjing Normal University, Nanjing 210023, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yu","family":"Yao","sequence":"additional","affiliation":[{"name":"School of Environment, Nanjing Normal University, Nanjing 210023, China"},{"name":"Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China"},{"name":"Jiangsu Engineering Laboratory of Water and Soil Eco-Remediation, Nanjing Normal University, Nanjing 210023, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoxiang","family":"Han","sequence":"additional","affiliation":[{"name":"School of Environment, Nanjing Normal University, Nanjing 210023, China"},{"name":"Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China"},{"name":"Jiangsu Engineering Laboratory of Water and Soil Eco-Remediation, Nanjing Normal University, Nanjing 210023, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dujun","family":"Li","sequence":"additional","affiliation":[{"name":"School of Environment, Nanjing Normal University, Nanjing 210023, China"},{"name":"Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China"},{"name":"Jiangsu Engineering Laboratory of Water and Soil Eco-Remediation, Nanjing Normal University, Nanjing 210023, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4482-3522","authenticated-orcid":false,"given":"Ruiming","family":"Han","sequence":"additional","affiliation":[{"name":"School of Environment, Nanjing Normal University, Nanjing 210023, China"},{"name":"Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China"},{"name":"Jiangsu Engineering Laboratory of Water and Soil Eco-Remediation, Nanjing Normal University, Nanjing 210023, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,10,14]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Wang, J.T., Yuan, S., Tang, L., Pan, X.D., Pu, X.C., Li, R., and Shen, C. 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