地点测值范围平均值参考本底范围（当地原野） 结论北京市80.3-77.178.460.2 -119.9正常水平哈尔滨市80.4-65.371.957.6-117.1正常水平长春市76.4-60.567.070.8-147.4正常水平沈阳市84.9-83.083.961.6-91.2正常水平济南市83.7-82.583.265.0-110.4正常水平南京市80.7-75.877.864.9-102.1正常水平上海市89.4-88.386.154.9-108.2正常水平杭州市108.0-105.8106.756.8-148.2正常水平福州市110.5-107.3108.759.0-184.8正常水平广州市119.2-110.7113.969.3 -266.9正常水平海口市77.4-75.676.453.5 -92.2正常水平合肥市101.6-95.898.4102.4-145.6正常水平长沙市72.8-70.871.961.3-145.7正常水平重庆市83.0-81.081.761.9-244.9正常水平南宁市124.5-76.185.434.8-183.4正常水平乌鲁木齐市69.0-65.968.073.3-145.7正常水平兰州市113.9-110.0111.784.1-154.6正常水平西宁市130.9-98.5110.9103.8-204.2正常水平银川市85.9-84.084.871.8-123.4正常水平拉萨市185.5-182.2184.2170.7-264.1正常水平郑州市85.5-82.483.669.3-91.0正常水平天津市78.8-66.572.865.5-129.2正常水平成都市92.4-90.491.458.3-324.3正常水平昆明市108.0-80.186.862.4-169.3正常水平武汉市70.4-68.669.666.0-106.0正常水平西安市99.7-93.795.350.0-117.0正常水平贵阳市88.9-81.984.375.1-144.1正常水平石家庄市93.4-77.885.262.1-144.1正常水平南昌市98.7-90.494.662.9-170.9正常水平太原市98.7-95.296.675.8-117.1正常水平呼和浩特市112.5-110.8111.768.7-132.9正常水平