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手机一查,找个“洗肺之地”

2017-08-15 04:11:46   中国青年网

本报讯 负氧离子被称为空气维C。它的高低,是衡量空气清新与否的重要标志。之前,我省的空气质量评价体系里,并没有负氧离子这一项。

昨天,浙江省环保厅发布消息说,我省计划今年年底前将正式发布清新空气(负氧离子)信息,在此基础上,将加快建设完善清新空气(负氧离子)监测网络和信息发布系统。也就是说,今后负氧离子指数会和空气质量一样,成为每天发布的内容。届时,大家准备出门游玩时,手机一查,就能找个“洗肺之地”好好休憩。

近日,浙江已经发布了《浙江省人民政府办公厅关于开展清新空气(负氧离子)监测及网络体系建设的通知》,在全国率先开展清新空气(负氧离子)监测发布体系建设。

根据省政府文件要求,每个县(市、区)需至少设立基本站(包括1个气象监测站和1个城市站),设区城市适当增加,基本站建设工作在今年年底前完成。同时在生态旅游景区、自然保护区、森林公园、湿地等生态环境优良区域设立功能站。

目前我省主要由气象、林业、旅游部门根据各自的行业规范开展负氧离子监测,已有133个站位(尚未包括旅游部门数据)。比如浙江省安吉县余村就有一个负氧离子监测点。走进这里,新鲜的空气让人情不自禁深呼吸,当地村里文化大礼堂外的电子LED屏显示,这里每立方厘米含有3000多个负氧离子。

据浙江省气象局发布的《浙江省2016年度负氧离子监测(试验)报告》显示:我省53个监测站空气负氧离子年平均浓度在420-4650个/cm3之间,最高的日均浓度值可达2万个/cm3,最大监测值达10万个/cm3。

按照地域分布,浙西和浙南山区负氧离子含量高,浙北平原区负氧离子含量低;按监测站所处环境类型划分,高山林区负氧离子含量最为丰富,其次是浅山景区和平原公园区。

林茂水优的山区(丽水、开化、泰顺、文成等)是我省负氧离子的富集地,空气负氧离子年平均浓度多在1500个/cm3以上,每天“清新空气”(负氧离子浓度高于1000个/cm3)小时数多在10小时以上,特别是海拔400米以上山林区,空气负氧离子浓度几乎“全天候”维持在2100个/cm3以上,空气“非常清新”。

本报记者 孙燕 通讯员 邵甜

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