With active economic growth and a huge number of citizens, China is considered as the largest developing country in the world. Due to urbanization, light pollution generalize is an environmental factor that significantly influences the quality and health of wildlife. According to Pengpeng Han et al., “In the 1990s, the increasing trend in light pollution regions mostly occurred in larger urban cities, which are mainly located in eastern and coastal areas, whereas the decreasing trend areas were chiefly industrial and mining cities rich in mineral resources, in addition to the central parts of large cities.” In the 2000s, nearly all urban cities were dominated by an uprising trend in light pollution. 
Adverse air quality can kill many organisms including humans. Ozone pollution can cause respiratory disease , cardiovascular disease , throat inflammation, chest pain, and congestion . Water pollution causes approximately 14,000 deaths per day, mostly due to contamination of drinking water by untreated sewage in developing countries . An estimated 500 million Indians have no access to a proper toilet,   Over ten million people in India fell ill with waterborne illnesses in 2013, and 1,535 people died, most of them children.  Nearly 500 million Chinese lack access to safe drinking water.  A 2010 analysis estimated that million people died prematurely each year in China because of air pollution.  The WHO estimated in 2007 that air pollution causes half a million deaths per year in India.  Studies have estimated that the number of people killed annually in the United States could be over 50,000.