PMID- 32325574 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20200427 LR - 20200427 IS - 1879-1026 (Electronic) IS - 0048-9697 (Linking) VI - 720 DP - 2020 Jun 10 TI - The occurrence and distribution characteristics of microplastics in the agricultural soils of Shaanxi Province, in north-western China. PG - 137525 LID - S0048-9697(20)31036-6 [pii] LID - 10.1016/j.scitotenv.2020.137525 [doi] AB - Microplastics (MPs) are less than 5 mm, and have significant implications for the environment. As a new type of environmental pollutant, MPs have increasingly attracted the attention of scientists and have led to marked increases in both public and political awareness. However, their distribution and fates in the terrestrial environment are limited. We investigated the distribution and characteristics of MPs in the agricultural soils of Shaanxi Province, a typical agricultural province in China. We found evidence that 100% of agricultural soils contained MPs. The concentration of MPs in the soil ranged from 1430 to 3410 items/kg. Fibers and small-sized particles (0-0.49 mm) were the predominant type and size, respectively. Polystyrene (PS), polyethylene (PE), polypropylene (PP), high-density polyethylene (HDPE), polyvinyl chloride (PVC) and polyethylene terephthalate (PET) particles were identified in agricultural soil. Furthermore, the abundance of microplastics in agricultural soil is closely related to the planting type of soil and climatic factors. The results from this study confirmed the presence of a high abundance of MPs in agricultural soil, and proved that agricultural activities might have caused MP contamination in soil. CI - Copyright (c) 2020 Elsevier B.V. All rights reserved. FAU - Ding, Ling AU - Ding L AD - College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China. FAU - Zhang, Shuaiya AU - Zhang S AD - College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China. FAU - Wang, Xiaoyu AU - Wang X AD - College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China. FAU - Yang, Xiaomei AU - Yang X AD - College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China. FAU - Zhang, Chutian AU - Zhang C AD - College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China. FAU - Qi, Yanbing AU - Qi Y AD - College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China. FAU - Guo, Xuetao AU - Guo X AD - College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China. Electronic address: guoxuetao2005@nwafu.edu.cn. LA - eng PT - Journal Article DEP - 20200224 PL - Netherlands TA - Sci Total Environ JT - The Science of the total environment JID - 0330500 SB - IM OTO - NOTNLM OT - Agricultural soil OT - Microplastics OT - Occurrence OT - Shaanxi Province COIS- Declaration of competing interest The authors declare no competing financial interest. EDAT- 2020/04/25 06:00 MHDA- 2020/04/25 06:01 CRDT- 2020/04/25 06:00 PHST- 2020/01/02 00:00 [received] PHST- 2020/02/21 00:00 [revised] PHST- 2020/02/22 00:00 [accepted] PHST- 2020/04/25 06:00 [entrez] PHST- 2020/04/25 06:00 [pubmed] PHST- 2020/04/25 06:01 [medline] AID - S0048-9697(20)31036-6 [pii] AID - 10.1016/j.scitotenv.2020.137525 [doi] PST - ppublish SO - Sci Total Environ. 2020 Jun 10;720:137525. doi: 10.1016/j.scitotenv.2020.137525. Epub 2020 Feb 24.