全国水质查询api根据流域查询水质量

{
"resultcode":"200",
"reason":"SUCCESSED!",
"result":[
{
    "四川广元清风峡":{            /*监测站点*/
        "ph":"8.41",            /*PH*/
        "phquality":"Ⅰ",        /*PH水质类别*/
        "oxygen":"9.28",        /*溶解氧*/
        "oxygenquality":"Ⅰ",        /*溶解氧水质类别*/
        "nitrogen":"0.08",        /*氨氮*/
        "nitrogenquality":"Ⅰ",        /*氨氮水质类别*/
        "permangan":"1.09",        /*高锰酸钾指数*/
        "permanganquality":"Ⅰ",        /*高锰酸钾指数水质类别*/
        "orgacarbon":"1.18",        /*总有机碳*/
        "orgacarbonquality":"-",    /*总有机碳水质类别*/
        "section":"嘉陵江（陕-川省界）",    /*断面属性*/
        "profile":"四川广元...",        /*监测站点简介*/
        "belong":"长江流域",        /*属于流域*/
        "date":"2013-03-19 ",        /*日期*/
        "time":"08:00:00 "        /*更新时间*/
    },
    ......
    "湖北宜昌南津关":{
        "ph":"8.02",
        "phquality":"Ⅰ",
        "oxygen":"9.99",
        "oxygenquality":"Ⅰ",
        "nitrogen":"0.17",
        "nitrogenquality":"Ⅱ",
        "permangan":"1.94",
        "permanganquality":"Ⅰ",
        "orgacarbon":"null",
        "orgacarbonquality":"null",
        "section":"长江干流（三峡水库出口）",
        "profile":"湖北宜昌南津关水质自动监测站位于长江边的桃花村风景区内。点位坐标东经111度16分14.42秒,北纬30度45分49.72秒。长江流域，长江干流（三峡水库出口），南水北调中线调水源头，属于国控省界断面。由宜昌市环保监测站托管。距离15km。建于2001年1月。",
        "belong":"长江流域",
        "date":"2013-03-19 ",
        "time":"12:00:00 "
    }
    }
}]
}