阳江市装修后室内空气质量调查与研究

Survey and research for indoor air quality after decoration in Yangjiang

目的:了解我市装修后居室内空气质量情况。方法:二氧化硫(SO2)采用325-I二氧化硫测定仪,二氧化氮(NO2)采用Z-1400XP二氧化氮测定仪,臭氧采用Z-1200XP臭氧测定仪,氨采用Z-800氨测定仪,氡采用RAD7氡测定仪,甲醛采用Z-300甲醛测定仪,苯、甲苯、二甲苯采用气相色谱法。结果:在所有被检对象中,除公共场所检出氨以外,其余被检对象均未检出二氧化硫(SO2)、二氧化氮(NO2)、臭氧。余下项目在被检对象中均被检出,甲醛的点超标率最高达70.00%,最高检出浓度达33.34 mg/m3,超标333.4倍,氡的点超标率最高达83.75%,最高检出浓度达856.25 Bq/m3,超标2.14倍,苯的点超标率最高达61.88%,最高检出浓度达14.66 mg/m3,超标133.27倍,甲苯点超标率最高达75.62%,最高检出浓度达72.58 mg/m3,超标362.9倍,二甲苯的点超标率最高达26.25%,最高检出浓度达31.16 mg/m3,超标155.8倍。结论:我市室内空气污染十分严重,甲醛是污染物之首,其次是氡,第三是苯系物;二氧化硫、二氧化氮、臭氧、氨等物质几乎未检出。

Objective：To understand the air quality of the room decorated in yangjiang. Methods：Sulfur dioxide was momitoted by 325 - I sulfur dioxide detector. Nitrogen dioxide was momitored by Z - 1400XP nitrogen dioxide detector. Ozone was mornitored by Z - 1200XP ozone analyzer. Ammonia was mornitored by Z - 800 ammonia detector. Radon was mornitored by RAD7 radon detector. Formaldehyde was mornitored by Z - 300 formaldehyde detector. Benzene, toluene, xylene by gas chromatography. Results：In all objects seized, except ammonia was deterted in public places, Sulfur Dioxide, Nitrogen dioxide, Ozone were not detected in the rest seized objects. The point rates of exceed standard of formaldehyde, radon, benzene, toluene, xylene were 70. 00% ,83.75% ,61.88% ,75.62% ,26. 25%. the most concentration of formaldehyde, radon, benzene, toluene, xylene were 33.34 mg/m^3, 856. 25 Bq/m^3, 14.66 mg/m^3, 72. 58 mg/m^3, 31.16 mg/m^3. Conclusion：Indoor air pollution in city is very serious, formaldehyde is the first of pollutants, followed by radon, and the third is Benzenes. Sulfur dioxide, nitrogen dioxide, ozone, ammonia and other substances were not detected.