Time-series Analysis On Relationship Between Air Pollution And The Number Of Daily Hospital For Respiratory System And Circulatory System Diseases In Urumqi

Objective: Based on the exposure of the atmospheric pollution and the residentialhealth-quantitative model which establish by studying of the air pollution status and thecorrelation of the respiratory system, circulatory system disease evaluate the effect urumqiair pollution to the number of respiratory system and circulatory system disease and thelagging effect. Methods: Collecting the number of the urumqi residents of the respiratorysystem disease and the circulatory diseases system from four hospitals that is first-classlevel hospital during on January1,2005-December31,2009, and collecting the sameperiod of daily of the main atmospheric pollutants, on the basis of controllingmeteorological factor, the research objectives is the relevance of atmospheric pollutantconcentration and the number of Urumqi residents of suffering from respiratory systemdisease and circulatory system. The time-series analysis was conducted by usingGeneralized Additive Model（GAM）.Results:1the main pollutant is SO₂in Urumqi.Atmospheric pollutants concentration, meteorological factors and residents in the hospitalall showed a trend of high and low changeing regularity. The peaks of atmosphericpollutant concentration and meteorological factors, air pressure, relative humidity and thenumber of daily hospital disease are mainly concentrated in winter and spring and summeris trough. The peaks of meteorological factors of temperature, the maximum wind speed isin the summer.2.An increase of10%μg/m3of SO₂, NO₂and PM10could increase thetotal the relative risk of daily hospital for respiratory system diseases by1.078（95%CI：1.056-1.097）、1.051（95%CI：1.013-1.089）、1.067（95%CI：1.046-1.095）when thesingle factor effective of SO₂, NO₂, PM10,and the best lagging days is6,4,6d.3Anincrease of10%μg/m3of SO₂and PM10could increase the total the relative risk of daily hospital for circulatory system by1.063（95%CI：1.024-1.091）、1.057（95%CI：1.021-1.088）.when SO₂get into PM10the effective of air pollution for circulation systemdisease is the largest, and the increase of10%μg/m3of SO₂and PM10could increase thetotal the relative risk of daily hospital for circulatory system by1.038（95%CI：1.013-1.069）.Conclusion: The Urumqi PM10and SO₂pollution is more serious. It is a cyclicalof the average density of PM10, SO₂and NO₂that is winter higher and summer lower.There has a relevance of about the air pollution of PM10, SO₂and the respiratory systemdisease and cardiovascular disease in the Urumqi.The air pollution density turn higher therespiratory system disease and cardiovascular disease in hospital number increases. Thereare differences about the Single contaminant and many kinds of pollutants and therespiratory system disease and the circulatory diseases system, and the influence isdifferent. By the research result, the joint action of pollutants, meteorological factors oncirculation system is greater than the influence of the respiratory system. Controlling airpollutant emissions will play an active role to protect the health of the residents.