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  • Title: [Relationship between sulfur dioxide pollution and upper respiratory outpatients in Jiangbei, Ningbo].
    Author: Wu Y, Zhao F, Qian X, Xu G, He T, Shen Y, Cai Y.
    Journal: Wei Sheng Yan Jiu; 2015 Jul; 44(4):565-9. PubMed ID: 26454952.
    Abstract:
    OBJECTIVE: To describe the daily average concentration of sulfur dioxide (SO2) in Ningbo, and to analysis the health impacts it caused in upper respiratory disease. METHODS: With outpatients log and air pollutants monitoring data matched in 2011-2013, the distributed lag non-linear models were used to analysis the relative risk of the number of upper respiratory patients associated with SO2, and also excessive risk, and the inferred number of patients due to SO2 pollution. RESULTS: The daily average concentration of SO2 didn't exceed the limit value of second class area. The coefficient of upper respiratory outpatient number and daily average concentration of SO2 matched was 0.44,with the excessive risk was 10% to 18%, the lag of most SO2 concentrations was 4 to 6 days. It could be estimated that about 30% of total upper respiratory outpatients were caused by SO2 pollution. CONCLUSION: Although the daily average concentration of SO2 didn't exceed the standard in 3 years, the health impacts still be caused with lag effect.
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