环境质量监测月报<\/span><\/p><\/div>

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广东省阳江生态环境监测站            <\/span>                                      <\/span><\/span><\/span>2024<\/span>年<\/span><\/span><\/span>2<\/span>月<\/span><\/span><\/span><\/p>

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一、城市空气质量状况<\/span><\/span><\/span><\/p>

（一）监测点位和监测指标<\/span><\/span><\/span><\/p>

阳江市区设置<\/span><\/span><\/span><\/span>3<\/span><\/span>个环境空气质量自动监测�******中学站点<\/span><\/span>，<\/span><\/span><\/span>阳东区的阳东陶然站点，监测指标包括二氧化硫、二氧化氮、可吸入颗粒物（<\/span><\/span><\/span><\/span>PM<\/span><\/span>_{10<\/span><\/span><\/sub>）、一氧化碳、臭氧、细颗粒物（<\/span><\/span><\/span><\/span>PM<\/span><\/span>2.5<\/span><\/span><\/sub>）等<\/span><\/span><\/span><\/span>6<\/span><\/span>项；市区设降雨监测点<\/span><\/span><\/span><\/span>1<\/span><\/span>个，位于江城区江南新城白云路广东省阳江生态环境监测站楼顶。<\/span><\/span><\/span><\/span><\/p>}

（二）监测评价标准<\/span><\/span><\/span><\/p>

二氧化硫、二氧化氮、可吸入颗粒物（<\/span><\/span><\/span><\/span>PM<\/span>_{10<\/span><\/sub>）、一氧化碳、臭氧、细颗粒物（<\/span><\/span><\/span><\/span>PM<\/span>2<\/span><\/sub>.<\/span><\/span><\/sub>5<\/span><\/sub>）<\/span><\/span><\/span><\/span>6<\/span>个基本项目监测结果评价按照《环境空气质量标准》（<\/span><\/span><\/span><\/span>GB3095<\/span>-<\/span><\/span>2012<\/span>）浓度限值二级标准执行；降雨以<\/span><\/span><\/span><\/span>pH<\/span>值小于<\/span><\/span><\/span><\/span>5<\/span>.<\/span><\/span>60<\/span>作为酸雨的评判标准。<\/span><\/span><\/span><\/span><\/p>}

（三）监测结果<\/span><\/span><\/span><\/p>

 1.环境空气<\/span><\/p>

1<\/span><\/span>月份，阳江市区环境空气质量<\/span><\/span><\/span><\/span><\/span>AQI<\/span>达标率<\/span><\/span><\/span><\/span>100%<\/span>，与去年同比持平，空气<\/span><\/span><\/span><\/span>质量<\/span><\/span><\/span><\/span>综合指数<\/span><\/span><\/span>3.54<\/span>，同比上升<\/span><\/span><\/span><\/span>26.9%<\/span>。空气质量优良天数比例为<\/span><\/span><\/span><\/span>100%<\/span>（<\/span><\/span><\/span><\/span>31<\/span>天）。空气质量六项污染物指标日评价浓度均达到国家环境空气质量二级标准<\/span><\/span><\/span><\/span>。<\/span><\/span><\/span><\/span><\/span>1<\/span>月，六项指标月评价浓度分别为二氧化硫<\/span><\/span><\/span><\/span>7<\/span>微克<\/span><\/span><\/span><\/span>\/<\/span>立方米，同比上升<\/span><\/span><\/span><\/span>16.7%<\/span>；二氧化氮<\/span><\/span><\/span><\/span>26<\/span>微克<\/span><\/span><\/span><\/span>\/<\/span>立方米，同比上升<\/span><\/span><\/span><\/span>36.8%<\/span>；<\/span><\/span><\/span><\/span>PM<\/span><\/span>_{10<\/span><\/sub><\/span>54<\/span>微克<\/span><\/span><\/span><\/span>\/<\/span>立方米，同比上升<\/span><\/span><\/span><\/span>25.6%<\/span>；一氧化碳<\/span><\/span><\/span><\/span>0.8<\/span>毫克<\/span><\/span><\/span><\/span>\/<\/span>立方米，同比上升<\/span><\/span><\/span><\/span>14.3%<\/span>；<\/span><\/span><\/span><\/span>PM<\/span><\/span>2.5<\/span><\/sub><\/span>33<\/span>微克<\/span><\/span><\/span><\/span>\/<\/span>立方米，同比上升<\/span><\/span><\/span><\/span>22.2%<\/span>；臭氧<\/span><\/span><\/span><\/span>138<\/span>微克<\/span><\/span><\/span><\/span>\/<\/span>立方米，同比上升<\/span><\/span><\/span><\/span>32.7%<\/span>。<\/span><\/span><\/span><\/span><\/span><\/p>}

2.降雨<\/span><\/p>

1<\/span><\/span><\/span>月市区无明显降雨，没有采集到降雨样品。<\/span><\/span><\/span><\/span><\/p>

二、水环境<\/span><\/span>质量状况<\/span><\/span><\/span><\/span><\/p>

（一）城市生活饮用水水源地监测情况<\/span><\/span><\/span><\/p>

1<\/span><\/span>月份，对漠江水厂地市级集中式生活饮用水水源地开展每月一次的水质监测，对阳东区北惯桥、阳春市鱼皇石、阳西县陂底水库等<\/span><\/span><\/span><\/span>3<\/span>个县级集中式生活饮用水水源地开展第一季度水质监测，水质评价执行《地表水环境质量标准》（<\/span><\/span><\/span><\/span>GB3838-2002<\/span>），其中表<\/span><\/span><\/span><\/span>1<\/span>中基础项目评价采用<\/span><\/span>Ⅲ<\/span><\/span>类标准，表<\/span><\/span><\/span><\/span>2<\/span>、表<\/span><\/span><\/span><\/span>3<\/span>中项目评价采用标准限值。监测结果显示，漠江水厂<\/span><\/span>、<\/span><\/span><\/span>陂底水库水源地水质达到<\/span><\/span>Ⅱ<\/span><\/span>类水质标准，鱼皇石<\/span><\/span>、<\/span><\/span><\/span>北惯桥水源地水质达到<\/span><\/span>Ⅲ<\/span><\/span>类标准，<\/span><\/span><\/span><\/span>4<\/span>个饮用水水源地<\/span><\/span>水质<\/span><\/span><\/span>全部达到其考核目标要求。<\/span><\/span><\/span><\/span><\/p>

（二）国考、省考监测断面监测情况<\/span><\/span><\/span><\/p>

本市设置地表水考核监测断面为江城、埠场、尖山、寿长、河口镇、中朗、大泉、三甲电站等<\/span><\/span><\/span>8<\/span><\/span>个断面，其中江城、河口镇、中朗断面为国考河流断面兼省考核断面，尖山、大泉断面为入海河流（河口）国考断面兼省考核断面，埠场、寿长断面为入海河流（河口）国考断面，三甲电站断面为跨市界国考断面。水质评价执行《地表水环境质量标准》（<\/span><\/span><\/span>GB3838-2002<\/span><\/span>），评价标准限值主要依据各断面的水质考核目标确定，江城、埠场、尖山、寿长、河口镇、中朗、大泉断面执行Ⅲ类标准，三甲电站断面执行Ⅱ类标准。<\/span><\/span><\/span><\/p>

本月监测结果显示，八个地表水国控断面都符合其考核目标要求。其中寿长、大泉<\/span><\/span>、<\/span><\/span><\/span>中朗、三甲电站断面为水质<\/span><\/span>Ⅱ<\/span><\/span>类，江城、尖山、埠场、河口镇断面水质为<\/span><\/span>Ⅲ<\/span>类。<\/span><\/span><\/span><\/span><\/p>

（三）省控监测断面监测情况<\/span><\/span><\/span><\/p>

我市设置春湾为省控断面，该断面水环境功能类别为Ⅱ类，水质评价执行《地表水环境质量标准》（<\/span><\/span><\/span><\/span>GB3838<\/span>-<\/span><\/span>2002<\/span>），本月监测结果显示，春湾断面为Ⅱ类水质，符合其水质功能区要求。<\/span><\/span><\/span><\/span><\/p>

饮用水源地、国考和省控断面水质情况见下表。<\/span><\/span><\/span><\/p>

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2024<\/span><\/span>年<\/span><\/span>1<\/span><\/span>月饮用水源地、国考和省控断面水质状况<\/span><\/span><\/p>