03-08
2022
Analysis and determination of the components and concentrations of exhaust gases emitted by motor vehicles at idle or operating conditions on-site or on a test bench. Large amounts of harmful exhaust gases emitted by motor vehicles while driving are a major source of mobile pollution in ambient air, and exhaust gas testing is an important part of ambient air pollution monitoring. The main items tested are carbon monoxide, nitrogen oxides, hydrocarbons, photochemical oxidants, and smoke density. In recent years, with the rapid increase in the number of motor vehicles, exhaust emissions have become a major source of air pollution.
03-08
2022
Due to the low-lying terrain and aging, complex drainage network of the old houses in our village, there were frequent issues such as pipe blockage, poor sewage discharge leading to unpleasant odors, and severe waterlogging during rainy days, significantly reducing our quality of life. After learning about the situation, the street office proactively contacted us and immediately organized staff from the municipal drainage network operation and maintenance unit to inspect the site, analyze the problems, and find solutions. Their swift actions quickly resolved our difficulties. Recently, several residents of Xintun Village in Longcheng Street expressed their joy over the eradication of the village's sewage pipe network problems, and they specially came to the street's agriculture, forestry, and water management center to present a banner as a token of gratitude.
03-08
2022
According to Interfax, all victims have been hospitalized. According to the Nizhny Novgorod regional emergency services, a preliminary investigation indicates that a Gazprom gas distribution station is located 1.5 kilometers from the school. The gas poisoning incident was caused by an excessive concentration of odorant in the gas emitted from the station.
03-08
2022
China's 2019 Mobile Source Environmental Management Annual Report, released by the Ministry of Ecology and Environment, shows that in 2018, the national motor vehicle保有量 reached 327 million, a year-on-year increase of 5.5%. A preliminary calculation shows that the total emissions of four pollutants reached 40.653 million tons. Emissions of carbon monoxide, nitrogen oxides, and particulate matter exceeded 90% of total atmospheric pollution emissions.
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