Monitoring data of 1077 precipitation samples for 10years in Yichang city were analysed statistically.Results show that pollution of arid rain in Yichang is growing seriously.

• 根据近10年1077个降水样品监测结果，进行统计分析，阐明了宜昌市存在酸雨污染，且日趋严重的趋势。