9-12主要城市区域环境噪声监测情况(2005年)MonitoringProgrammeofUrbanAreaEnvivonmentalNoiseinMajorCities(2005)网格长度网格宽度网格总数(个)(米)(米)TotalNumber地区RegionGridLengthGridWidthofGrids(m)(m)(unit)北京Beijing10001000448天津Tianjin10001000205石家庄Shijiazhuang500500240太原Taiyuan750750232呼和浩特Hohhot400400204沈阳Shenyang750750240长春Changchun500500204哈尔滨Harbin700700216上海Shanghai14141414206南京Nanjing10001000210杭州Hangzhou500500235合肥Hefei500500250福州Fuzhou500500220南昌Nanchang500500201济南Jinan10001000352郑州Zhengzhou500500235武汉Wuhan10001000210长沙Changsha500500288广州Guangzhou10001000202南宁Nanning550550200海口Haikou400400203重庆Chongqing500500661成都Chengdu900900215贵阳Guiyang500500220昆明Kunming800800223拉萨Lhasa西安Xi'an200兰州Lanzhou500500211西宁Xining375375224银川Yinchuan500500200乌鲁木齐Urumqi750750209等效声级dB(A)EquivalentSoundLeveldB(A)53.254.954.053.854.354.156.456.057.354.055.753.756.255.953.555.755.054.055.156.055.754.754.655.653.855.457.952.153.354.9