School of Ecology and Environment;
Beijing Technology and Business University;
Beijing 100048;
China;
State Environmental Protection Key Laboratory of Food Chain Pollution Control;
Beijing Technology and Business University;
Beijing 100048;
China;
Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry;
Beijing Technology and Business University;
Beijing 100048;
China;
Agricultural machines; Carbonyl compounds; Emission characteristics; Tillage process; PEMS;