Air pollution will kill nearly 4 million people

Urban air pollution will become the biggest environmental cause that causes people to die early in the coming decades.

The Organization for Economic Co-operation and Development (OECD) has just released a research report on the global environmental outlook by 2050. Accordingly, without improvements compared to the present, urban air pollution will become "global assassin" , when it can kill about 3.6 million people every year in the world.

Chinese air pollution is at an alarming rate.

According to the report, the concentration of air pollution in some cities, especially in Asia, has far exceeded the safety level of the World Health Organization. By 2050, the number of deaths from contact with physical particles is expected to double the current level and most deaths occur in China and India.

In terms of air quality, Vietnam is one of the 10 dirtiest urban air countries in the world, according to a study by US universities, published at the World Economic Forum last month. Small dust pollution in the air, caused by traffic and urban construction, is a serious problem today.

The global environmental outlook report addresses four key areas of most concern such as climate change, loss of biodiversity, water, and the effects of pollution on health.

Demand for water can also increase by more than half. By 2050 is 40%, many areas of the world are likely to experience severe water shortages.