Potential Emissions of Insecticide VOCs and Their Correlations between Agricultural Emissions and Meteorological Factors

Jingjin Yang, Genyi Wu (), Caihong Jiang, Wenqi Long and Wangrong Liu
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Jingjin Yang: College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
Genyi Wu: College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
Caihong Jiang: Hunan Research Academy of Environmental Sciences, Changsha 410004, China
Wenqi Long: State Environmental Protection Key Laboratory of Monitoring for Heavy Metal Pollutants, Hunan Ecological and Environmental Monitoring Center, Changsha 410019, China
Wangrong Liu: State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment of the PRC, Guangzhou 510530, China

Agriculture, 2022, vol. 13, issue 1, 1-15

Abstract: In recent years, considerable attention has been paid to the volatile organic compounds (VOCs) that might lead to serious environmental problems, yet few studies relate to the insecticide application during agricultural process. As there appears to be a notable lack of research on the VOCs pollution of insecticides, we aimed to assess the occurrence of insecticide VOCs in the laboratory and during the agricultural process in China that have not been previously investigated. We discuss the estimation of VOCs emission potentials (EPs) and actual emissions (AEs) posed by insecticide applications. For this purpose, nine insecticide formulations were collected for testing and were analyzed via a thermogravimetric analyzer (TGA) and a pump-suction photoionization detection (PID) gas detector. The results showed that the EPs of nine insecticide samples ranged from 12.30% to 81.30%, with a median of 41.59% and a mean of 45.41%. The average actual emission ratio (AER) for the different formulations ranged from 48.76% to 72.12%. AER value was significantly positively correlated with temperature, but significantly negatively correlated with relative humidity and atmospheric pressure. The results of this study provide a technical reference for establishing the corresponding emission inventory and determining the total amount of pesticide VOCs.

Keywords: insecticide application; pesticide VOCs; meteorological factors; emission characterization (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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