CAJ | 학술논문

区域空气质量指数(Regional AirQuality Index,RAQI)是粤港政府联合发布、反映珠三角区域内不同地区的空气质量状况的评级系统.虽然RAQI综合考虑了空气污染的总量水平,较我国空气污染指数(Air Pollution Index,API)系统增加了O_3,一定程度地考虑了大气氧化性增高的问题,但其所表征的空气质量状况与实际空气污染水平和公众感受仍存在差异.对2006年珠三角和香港监测数据的研究表明,RAQI较API能更充分地体现空气质量的分级;小时RAQI能够实时准确地反映了环境质量的变化,较每日RAQI更具有实际意义;加入PM_(25)或采用不同的O_3、PM_(10)和PM_(25)环境质量标准,是影响RAQI的重要因素.PM_(25)/PMm为0.7,比世界卫生组织推荐的PM_(25)/PM_(10)为0.5的比例更符合珠三角的实际情况.因此,增加细粒子污染物PM_(25),适当调严某些污染物的环境质量标准,增加RAQI的发布频次,可以使RAQI更全面、准确地反映区域空气污染状况,是RAQI改进的方向.
구역공기질량지수(Regional AirQuality Index,RAQI)시월항정부연합발포、반영주삼각구역내불동지구적공기질량상황적평급계통.수연RAQI종합고필료공기오염적총량수평,교아국공기오염지수(Air Pollution Index,API)계통증가료O_3,일정정도지고필료대기양화성증고적문제,단기소표정적공기질량상황여실제공기오염수평화공음감수잉존재차이.대2006년주삼각화향항감측수거적연구표명,RAQI교API능경충분지체현공기질량적분급;소시RAQI능구실시준학지반영료배경질량적변화,교매일RAQI경구유실제의의;가입PM_(25)혹채용불동적O_3、PM_(10)화PM_(25)배경질량표준,시영향RAQI적중요인소.PM_(25)/PMm위0.7,비세계위생조직추천적PM_(25)/PM_(10)위0.5적비례경부합주삼각적실제정황.인차,증가세입자오염물PM_(25),괄당조엄모사오염물적배경질량표준,증가RAQI적발포빈차,가이사RAQI경전면、준학지반영구역공기오염상황,시RAQI개진적방향.
Regional Air Quality Index (RAQI) was jointly issued by Guangdong and Hong Kong government in 2005, in order to provide the public with information on air quality of various places in the Pearl River Delta (PRD). Although RAQI can not only consider total amount of air pollution level, but also add O_3 as a parameter representing atmospheric oxidation capacity comparing with air pollution index (API), but there are still differences between environmental quality information provided by RAQI and real air pollution status and direct senses of the public. Using monitoring data of PRD and Hong Kong in 2006, RAQI could better reveal air pollution levels than API, hourly RAQI is much better than daily RAQI at indicating changes of air quality. Adding PM_(25) into the system or applying different air quality standards of O_3, PM_(10) and PM_(25) exert a significant impact on RAQL Ratio of PM_(25) to PM_(10) (0.5) recommended by the World Health Organization was much lower than real value of PRD, which was believed to be 0.7. Results suggested that RAQI still need to be improved on adding new pollutant parameters, choice of air quality standards and issuing frequency.