| Based on the TSP datas during 2007-2009 at the TianShan District,the ShaYibake District,the TouTunhe District and the DaBancheng District, the PM10 datas during 2007-2008 at the TianShan District, the rainwater datas during'1991-2009 at the TianShan District, the average mass concentration variation of TSP and PM10and the acidwater variation were analyzed。By investigating rainwater samples from Apr to Aug 2009 were collected at the TianShan District and TSP samples were collected at the TianShan District and the ShaYibake District in 2008, four anions were analyzed。The major conclusions of this study were as follows:(1) The changeable trends of average mass concentration of TSP showed that the average annual concentration (0.408mg/m3) at the TianShan District was higher than the ShaYibake District(0.361mg/m3) in 2008, and that was much more than theⅢstandard (0.15mg/m3)。The average seasonal concentration showed that the month concentration of winnter was max value, the month concentration of sunmmer was min value。And the monthly average mass concentration of winnter was beyond 0.400 mg/m3。The daily average concentration of TSP was higher than theⅢstandard (0.50mg /m3) a few times at the TianShan District,the ShaYibake District and the TouTunhe District。(2) The changeable trends of average mass concentration of PM10 showed that the annual average concentration of TianShan. District was 0.145mg/m3 in 2007, that was higher thanⅡstandard (0.10mg/m3) and lower thanⅢstandard (0.15mg/m3)。The sequence of seasonal average concentration variation of PM10 was winter>spring>autumn>summer.The changeable trends of monthly average concentration of PM10 showed that the average mass concentration of Jan was max value, and the July was min value。. The daily average concentration was higher than theⅡstandard (0.15mg /m3) at the the heating time, and between I standard (0.05mg/m3) at the non-heating time。(3) By investigating pH value, K value (conductance) in Urumqi City from July, 1991 to Nov,2008。Results show:the frequency of acid rain was between 0% and 21.7%。The relationship was not obvious between rainfall and the frequency of acid rain, but the relationship was negative between pH and the frequency of acid rain。The changeable trends of K had a few wave crest and trough before 2003, but the trends was gently in the summer, autumn and autumn after 2003。The pH value was between 7.0 and 5.6 in the non-heating time, but there were three years higher than 7.0, and four years were lower than 5.6。The K average value of heating time was higher than non-heating time from 1998。(4) By investigating rainwater samples from Apr to Aug 2009 were collected at the TianShan District, four anions were analyzed。The negative ion(F-,Cl-,SO42-,NO3-) and the positive ion (Na+,NH4+,K+,Mg2+,Ca2+) were analyzed by IC。The results show that the maximum negative ion concentration value was SO42- (26.2670mg/L), and the min value was F" in the rainwater samples.And the maximum positive ion concentration value was Ca2+(21.1958mg/L), the min value was K+。The value of [NO3-]/[SO42-] showed that the fix contaminated point gave rise to the water-solubility ions。(5) By investigating TSP samples in 2008 were collected at the TianShan District and the ShaYibake District, four anions were analyzed。The negative ion (F-,Cl-,SO42-,NO3-) and the positive ion (Na+,NH4+,K+,Mg2+,Ca2+) were analyzed by IC。The results show that the maximum negative ion concentration value of the two satations were both all the SO42- (62.2697mg/L,67.7551mg/L), and the min value was F-in the TSP samples.And the maximum positive ion concentration value was NH4+ (15.7059mg/L), the min value was Mg2+ at the TianShan District, and the maximum positive ion concentration value was Ca2+(15.2761mg/L), the min value was K+ at the ShaYibake District。The value of [NO3-]/[SO42-] showed that the fix contaminated point gave rise to the water-solubility ions at the two satations。...
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