2019年上海PM2.5恶化

Shanghai air quality and PM2.5 concentration in year 2019

2019年上海PM2.5恶化

Smart Air分析了2019年空气污染的数据,发现上海对PM2.5的改善效果已经停滞,其实还比2018年上升了3%。

 

2014年-2019年上海PM2.5空气污染状况

 

2019年,上海“优”空气天数下降了9.3%。在2018年,上海有32%的日子被符合“优”的标准,但到了2019年,这一比例降至23%。

 

2018年和2019年上海PM2.5空气质量对比

 

这个“优”的标准是根据美国环保标准空气质量指数(AQI)来分类的。

虽然上海出台了《上海市2018-2020年煤炭消费总量控制工作方案》,并将2019年的煤炭消费目标限制在4400万吨左右,但事实上煤炭消费的控制出现了放缓的情况,这一变化超过了行动计划中提出的较2015年减少5%以上的目标。

 

上海的空气质量是不是已经够好了?

有个好消息,上海的PM2.5已经超过了计划中的42微克(µg/m3)目标。但坏消息是上海PM2.5的平均值仍然是世界卫生组织年限的3倍多。

 

近年上海PM2.5空气污染

 

而根据世界卫生组织的空气质量指南,长期暴露在PM2.5大于10微克的环境中会增加95%的心肺功能和肺癌的死亡率。

 

研究发现空气净化器和口罩的保护作用

尽管PM2.5有害,但研究发现,戴口罩可以防止血压和心率受到影响。对空气净化器进行的安慰剂对照研究发现,即使在20岁的健康年轻人中,减少家中的颗粒物也可以防止对血压、炎症和免疫反应的伤害。

Smart Air是一家获得认证的B Corp,致力于对抗大公司哄抬空气净化器价格的荒诞说法。为了帮助生活在污染城市的人们保护自己,Smart Air提供经验支持的、没有噱头的净化器和口罩,帮助人们降低呼吸干净空气的成本。

 

 

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提醒

2 评论
Suhas
2020-03-10 3:37 pm

It is my contention that UV-C light be the solutions to protect against Corona Virus. Actually, at a distance of about 2″ from the UV-C Tube’s inactivation Capacity increases 32 times more than that of inactivation Capacity from 1 Meter.

In other words, If you force the Air to come closer to the UV-C Tubes, even with small time, the Air will get Inactivated of most Bacteria and Virus. I have made experiments and the result were encouraging.

I do not know, whether such experiments were made by any one.

If yes, I would like to know the results.

Suhas
2020-03-10 3:29 pm

Can UV-C light be the solutions to protect against Corona Virus? Any details of Experiments available?

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