Nowadays, the environment becomes worse than before. Much more air pollutions appear. Land degradation, climate change, water shortages and water level rises all of this pollutions are cause by human. During this year a very serious problem appear in China called PM2.5. Maybe other county think is none of their business but no one know what will happen in the future in other country. Therefore, I want everyone know this and started to take precautionary measure.

China is a developing country which have a large number of population. As this country fast develop, more and more environment problem started appear. Since 2011, the American Embassy started to show Chinese people the daily number of PM2.5. Chinese started to learn the smoke around all of China is not only water. It includes lots of toxic things and influence our health and life. Lots of people in China just know PM2.5 is stand for a kind air pollution. But what is PM2.5? PM2.5 the whole name is Fine particulate matter. PM2.5 is not only a kind of atmospheric phenomenon but also an air pollutant that is a concern for people's health when levels in air are high. PM2.5 is combine with tiny particles in the air that reduce visibility and cause the air to appear hazy when levels are elevated. Outdoor PM2.5 levels are most likely to be elevated on days with little or no wind or air mixing. The scientists also found that tiny particles are lots of different harmful carcinogenic substance. There are Benzo[a]pyrene 176, Biphenyl 1.0, anthracene 2.8, naphthalene 4.0, dibenzonfuran 2.0, acenaphthene , pyrene 58.6, and fluorine 2.3. These are all carcinogens. Benzo[a]pyrene 176 is one of the strongest carcinogens in the world and this is surpass the international standards 14 times in China.

Every one wants to have a safe and peaceful life. When spring come people want to wearing the colorful dresses, seeing the beautiful flowers and enjoying the sunshine. When summer some people want to listening the cicada at the night, sitting under the tree and eating the ice cream. When autumn come, people wants seeing the yellow and red leaves and watching them fall on the ground. When winter come people want to seeing the beautiful snow come and playing with friends in the snow. But now, the environment has change, lots of beautiful landscape are disappear and hide behind the PM2.5. No one want to live in a harmful place, all people want to be healthy and no illness therefore we need to protect the environment. I remember few days ago I watched a TV show, it has a sentence made me remarkable “……Human are not the owner of Earth. We are just a necessary but not sufficient conditions for Earth.……”

Therefore, I suggest people take public transportation on a day when they go out. It will reduce the pollution from the car. Because now there are many bus started use new energy like electricity, hydrogen. This is not like tradition oil car, it protect the environment and reduce the pollution.