PMID- 29109435 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240327 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 7 IP - 1 DP - 2017 Nov 6 TI - Developing a Black Carbon-Substituted Multimedia Model for Simulating the PAH Distributions in Urban Environments. PG - 14548 LID - 10.1038/s41598-017-14789-9 [doi] LID - 14548 AB - A multimedia fugacity model with spatially resolved environmental phases at an urban scale was developed. In this model, the key parameter, organic matter, was replaced with black carbon (BC) and applied to simulate the distributions of phenanthrene (Phe), pyrene (Pyr) and benzo[alpha]pyrene (BaP) in Nanjing, China. Based on the estimated emissions and measured inflows of air and water, the Phe, Pyr and BaP concentrations in different environment media were calculated under steady-state assumptions. The original model (OC-Model), BC-inclusive model (dual C-Model) and improved model (BC-Model) were validated by comparing observed and predicted Phe, Pyr and BaP concentrations. Our results suggested that lighter polycyclic aromatic hydrocarbons (PAHs) were more affected by BC substitution than their heavier counterparts. We advocate the utilization of sorption with BC in future multimedia fate models for lighter PAHs based on the comparison of the calculated and observed values from measured and published sources. The spatial distributions of the Phe, Pyr and BaP concentrations in all phases were rationally mapped based on the calculated concentrations from the BC-Model, indicating that soil was the dominant sink of PAHs in terrestrial systems, while sediment was the dominant sink of PAHs in aquatic systems. FAU - Wang, Chunhui AU - Wang C AD - School of Geographic and Oceanographic Sciences, Nanjing University, 163 Xianlin Road, Nanjing, 210023, China. FAU - Zhou, Shenglu AU - Zhou S AD - School of Geographic and Oceanographic Sciences, Nanjing University, 163 Xianlin Road, Nanjing, 210023, China. zhousl@nju.edu.cn. FAU - He, Yue AU - He Y AD - Nanjing Institute of Environmental Science, Ministry of Environmental Protection of China, 8 Jiangwangmiao Street, Nanjing, 210042, China. FAU - Wang, Junxiao AU - Wang J AD - School of Geographic and Oceanographic Sciences, Nanjing University, 163 Xianlin Road, Nanjing, 210023, China. FAU - Wang, Fei AU - Wang F AD - School of Geographic and Oceanographic Sciences, Nanjing University, 163 Xianlin Road, Nanjing, 210023, China. FAU - Wu, Shaohua AU - Wu S AD - School of Geographic and Oceanographic Sciences, Nanjing University, 163 Xianlin Road, Nanjing, 210023, China. wsh@nju.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20171106 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 PMC - PMC5673973 COIS- The authors declare that they have no competing interests. EDAT- 2017/11/08 06:00 MHDA- 2017/11/08 06:01 PMCR- 2017/11/06 CRDT- 2017/11/08 06:00 PHST- 2017/07/03 00:00 [received] PHST- 2017/10/16 00:00 [accepted] PHST- 2017/11/08 06:00 [entrez] PHST- 2017/11/08 06:00 [pubmed] PHST- 2017/11/08 06:01 [medline] PHST- 2017/11/06 00:00 [pmc-release] AID - 10.1038/s41598-017-14789-9 [pii] AID - 14789 [pii] AID - 10.1038/s41598-017-14789-9 [doi] PST - epublish SO - Sci Rep. 2017 Nov 6;7(1):14548. doi: 10.1038/s41598-017-14789-9.