title: Gridded emission inventory of short-chain chlorinated paraffins and its validation in China.
abstract: China produces approximately 20%-30% of the total global chlorinated paraffins (CPs). The establishment of a short-chain CP (SCCP) emission inventory is a significant step toward risk assessment and regulation of SCCPs in China and throughout the globe. This study developed a gridded SCCPs emission inventory with a 1/4° longitude by 1/4° latitude resolution from 2008 to 2012 for China, which was based on the total annual CPs emissions for the nation. The total national SCCPs emission during this 5-year period was 5651.5 tons. An additive in metal cutting fluids was a major emission source in China, contributing 2680.2 tons to the total atmospheric emissions of SCCPs from 2008 to 2012, followed by the production of CPs (2281.8 tons), plasticizers (514.3 tons), flame retardants (108.6 tons), and net import (66.6 tons). Most of these emission sources are located along the eastern seaboard of China and southern China. A coupled atmospheric transport model was employed to simulate environmental contamination by SCCPs using the gridded emission inventory of SCCPs from 2008 to 2012 as the model initial conditions. Simulated atmospheric and soil concentrations were compared with field monitoring data to validate the emission inventory. The results showed good consistency between modeled and field sampling data, supporting the reliability and credibility of the gridded SCCPs emission inventory that was developed in the present study.
authors.affiliation: Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
authors.forename: Wanyanhan
authors.initials: W
authors.lastname: Jiang
authors.affiliation: Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China. Electronic address: huangt@lzu.edu.cn.
authors.forename: Tao
authors.initials: T
authors.lastname: Huang
authors.affiliation: Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
authors.forename: Xiaoxuan
authors.initials: X
authors.lastname: Mao
authors.affiliation: Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
authors.forename: Li
authors.initials: L
authors.lastname: Wang
authors.affiliation: Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
authors.forename: Chenhui
authors.initials: C
authors.lastname: Jia
authors.affiliation: Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
authors.forename: Yanan
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Gao
authors.affiliation: Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing, 100101, China. Electronic address: jianminma@lzu.edu.cn.
authors.forename: Jianmin
authors.initials: J
authors.lastname: Ma
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D001272:Atmosphere / Q000737:chemistry*; D002681:China; D004784:Environmental Monitoring / Q000592:standards*; D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D008962:Models, Theoretical; D010232:Paraffin / Q000032:analysis*; D018570:Risk Assessment; D012987:Soil / Q000737:chemistry*
chemical_list: D000393:Air Pollutants; D006843:Hydrocarbons, Chlorinated; D012987:Soil; D010232:Paraffin
keywords: Gridded emission inventory; Modeling; SCCPs; Validation