Detection And Analysis Of Volatile Organic Compounds In Plastic Runway

Plastic runway is a common sports ground floor,as a kind of all-weather sports venues,plastic runway with its good beauty and comfort in the sports venues and school sports venues widely laid.But,in recent years,the outbreak of the"poison runway"incident has aroused widespread concern in the community.At present,the plastic runway"poisoning incident"is caused by breathing inhalation of sports personnel,so it is necessary to study the volatile organic compounds released by plastic runway.This paper takes plastic runway as the research object to study the VOCs of plastic runway.This paper uses 1m3small environmental cabin method to release the plastic runway VOCs,uses gas chromatography-mass spectrometry to carry out qualitative and quantitative analysis on the VOCs components of the plastic runway,and the experimental results show that:In the Environment cabin temperature 60?,the relative humidity 15%,the exchange rate 0h^-1,the double layer spraying polyurethane plastic runway altogether releases 92 kinds of VOCs,Oxygen-containing organic compounds and nitrogen-containing organic compou-nds,such as the seven major categories,the detection of mainly alkane and aromatic hydro-carbons,alkynes and nitrogen-containing organic compounds detected the least;The detection rate of 92 kinds of VOCs monomer released from plastic runway is more than 53.33%,among which the detection rate reaches 100%of 64 kinds;All kinds of VOCs detected the highest concentration of alkanes,followed by aromatic hydrocarbons,oxygen containing organic com-pounds and olefins,alkynes and nitrogen-containing organic compounds with relatively low-quality concentration.The largest detectable mass concentration of each VOCs monomer is xylene,reaching the 796.00?g/m3.The mass concentration of each VOCs monomer was mainly concentrated in the 5.00?g/m3,among which the maximum detectable quality concen-tration and the average quality concentration of xylene were the largest;some samples of VOCs detected the mass concentration has exceeded its damage to the human body of the safety valve value,may cause acute injury to the human body.