Norms of emissions of harmful substances generated from vehicles in the different countries of the world

Abstract

According data of the World Health Organization (WHO), almost 92% of the population on Earth lives in places with polluted air. The problem of environmental friendliness of cars arose in the middle of the twentieth century, when cars became a mass product. European countries before the others began to apply various environmental standards. Ecological standards existed in separate countries and included various requirements for the content of harmful substances in the exhaust gases of cars. On emissions of harmful substances from stationary sources into the atmosphere Kazakhstan is among the three leaders after Russia and Ukraine (amongst CIS countries). The level of air pollution due to the development of industry and vehicles has increased dozens of times from year to year. The authors of this article have collected and systematized the data published in modern literature sources about ecological norms of emissions generated from cars in different countries (European countries, USA, Japan, India, CIS countries). Obviously that it is necessary to tighten regulatory emissions in a legislative way. It is very important to reduce emissions of NO 2 and particulate matter (soot), to carry out qualitative tests of catalysts in real conditions of the cars exploitation.