Nowadays,artificial lawn has been deeply into people's life.The reason why artificial turf can be widely accepted and applied is that it is more wear-resistant,weather resistant,easy to maintain,and has better elasticity and color stability than natural grass/planted grass.Therefore,people pay more and more attention to the environmental protection performance of artificial turf in practical use.At present,the detection of environmental performance of artificial turf has become an indispensable reference for evaluating the quality of artificial turf.So,what are the important evaluation indicators of the environmental performance of artificial turf?

　　1、Classification of environmental performance indicators of human lawn

　　Heavy metals:lead,cadmium,chromium,mercury,arsenic

　　Toxic chemicals:benzene,toluene and xylene,free toluene diisocyanate(TDI),TVOC,polycyclic aromatic hydrocarbons(PAHs)

　　2、Evaluation index and detection purpose of environmental safety performance of artificial turf

　　1.Heavy metal content

　　Lead,mercury,arsenic,cadmium and other heavy metals are toxic substances,and their content detection is used to assess whether the lawn itself is safe and environmentally friendly.

　　2.Content of other toxic and harmful substances

　　The detection of relevant toxic substances is used to evaluate whether the artificial turf and auxiliary materials exceed the safety standards.

　　3.Release rate of toxic and harmful substances

　　Chemicals are volatile.This indicator is used to evaluate whether the volatilization rate of chemical substances contained in artificial turf and auxiliary materials exceeds the safety standard.

　　3、Test standard for environmental protection performance of artificial turf

　　Domestic:national standard of artificial grass for sports GB/T20394-2013,standard of Shanghai Youth League Committee T/1310101002-C003-2016,limit of harmful substances in plastic runway surface of school sports ground,and Shenzhen standard SJG29-2016,quality control standard of synthetic sports ground surface.

　　It should be emphasized that people all over the world are paying more and more attention to the harm of environmental pollution to human beings.The volatilization of harmful substances in low-quality artificial turf will do harm to human beings and pollute the environment.The human body will be in close contact with the artificial turf every day.Only the artificial turf with good environmental protection performance can protect human health to the greatest extent.