9-12主要城市区域环境噪声监测情况(2004年)MonitoringProgrammeofUrbanNoisePollutioninKeyCities(2004)网格长度网格宽度网格总数(个)地区Region(米)(米)TotalNumberGridLengthGridWidthofGrids(m)(m)(unit)北京Beijing10001000448天津Tianjin10001000205石家庄Shijiazhuang500500240太原Taiyuan232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Jinan10001000214郑州Zhengzhou500500235武汉Wuhan10001000210湖南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Lanzhou500500212西宁Xining375375223银川Yinchuan500500200乌鲁木齐Urumqi750750209等效声级LeqdB(A)SoundLevelLeqdB(A)53.854.954.054.054.654.056.756.156.554.455.953.256.255.753.355.855.453.355.055.055.755.154.655.753.155.658.051.752.954.3