title: Influence of pesticides contamination on the emission of PCDD/PCDF to the land from open burning of corn straws.
abstract: Open burning of crop residues has been identified as an important emission source of PCDD/PCDF to the environment. This paper presents the first known data on the emission of PCDD/PCDF to the land considering the influence of pesticides applied in crops planting. Emission factor for PCDD/PCDF to the land from open burning of corn straw with pesticides contamination ranged from 0.07 to 0.57 ng WHO₂₀₀₅-TEQ/kg straw burned with a mean value of 0.24 ng WHO₂₀₀₅-TEQ/kg straw burned and median value of 0.20 ng WHO₂₀₀₅-TEQ/kg straw burned, respectively. The concentration was 35 to 270 times higher than that without additional pesticide contaminated. Initial observation was that emission factor for PCDD/PCDF from open burning of crop residues was overestimated in the former UNEP Dioxin Toolkit. Pesticides contamination should be considered in some hotpots where special and over dosed pesticides has been sprayed especially in developing countries.
authors.affiliation: Persistent Organic Pollutants (POPs) Research Center, Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China.
authors.forename: Tingting
authors.initials: T
authors.lastname: Zhang
authors.forename: Jun
authors.initials: J
authors.lastname: Huang
authors.forename: Shubo
authors.initials: S
authors.lastname: Deng
authors.forename: Gang
authors.initials: G
authors.lastname: Yu
mesh_terms: D000383:Agriculture; D000393:Air Pollutants / Q000032:analysis* / Q000737:chemistry; D001572:Benzofurans / Q000032:analysis* / Q000737:chemistry; D004784:Environmental Monitoring; D017745:Incineration; D010575:Pesticides / Q000032:analysis / Q000737:chemistry*; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis / Q000737:chemistry; D011108:Polymers / Q000032:analysis* / Q000737:chemistry; D003313:Zea mays / Q000737:chemistry*
chemical_list: D000393:Air Pollutants; D001572:Benzofurans; D010575:Pesticides; D000072317:Polychlorinated Dibenzodioxins; D011108:Polymers; C016068:polychlorodibenzofuran