In 2022, there were nearly **** million tons of nitrogen oxides emitted by engineering machinery in China. Vehicles were one of the main sources of air pollution in China.
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Ministry of Ecology and Environment (China). (July 12, 2023). Amount of air pollutants emitted by engineering machinery in China 2022, by type (in 1,000 metric tons) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 27, 2026, from /statistics/1068317/china-emission-from-engineering-machinery-by-pollutant/
Ministry of Ecology and Environment (China). "Amount of air pollutants emitted by engineering machinery in China 2022, by type (in 1,000 metric tons)." Chart. July 12, 2023. ÌÇÐÄÆƽâ°æ. Accessed July 27, 2026. /statistics/1068317/china-emission-from-engineering-machinery-by-pollutant/
Ministry of Ecology and Environment (China). (2023). Amount of air pollutants emitted by engineering machinery in China 2022, by type (in 1,000 metric tons). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 27, 2026. /statistics/1068317/china-emission-from-engineering-machinery-by-pollutant/
Ministry of Ecology and Environment (China). "Amount of Air Pollutants Emitted by Engineering Machinery in China 2022, by Type (in 1,000 Metric Tons)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 12 Jul 2023, /statistics/1068317/china-emission-from-engineering-machinery-by-pollutant/
Ministry of Ecology and Environment (China), Amount of air pollutants emitted by engineering machinery in China 2022, by type (in 1,000 metric tons) ÌÇÐÄÆƽâ°æ, /statistics/1068317/china-emission-from-engineering-machinery-by-pollutant/ (last visited July 27, 2026)
Amount of air pollutants emitted by engineering machinery in China 2022, by type (in 1,000 metric tons) [Graph], Ministry of Ecology and Environment (China), July 12, 2023. [Online]. Available: /statistics/1068317/china-emission-from-engineering-machinery-by-pollutant/
