dsadsf
` PollutrionValueVo pollutrionValueVo1 = new PollutrionValueVo();
PollutrionValueVo pollutrionValueVo2 = new PollutrionValueVo();
PollutrionValueVo pollutrionValueVo3 = new PollutrionValueVo();
PollutrionValueVo pollutrionValueVo4 = new PollutrionValueVo();
List<Double> COD = (List<Double>) map1.get("化學(xué)需氧量");
List<Double> NOX = (List<Double>) map1.get("氮氧化物");
List<Double> SO2 = (List<Double>) map1.get("二氧化硫");`
