杭州的空气质量

杭州的空气质量指数(AQI)和PM2.5空气污染

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带有彩色AQI图标的IQAir地图

天气

杭州现在的天气怎么样?

天气图标
天气
温度59°C
湿度100%
风速和风向2.2 mp/h
气压1015 mb

实时AQI城市排名

实时中国 热门城市排名

小提示图标
#city美国 AQI
1 中卫, 宁夏

394

2 巴彦淖尔, 内蒙古

370

3 固原, 宁夏

259

4 太原, 山西

179

5 Wuda, 内蒙古

178

6 阳泉, 山西

173

7 洮南市, 吉林

169

8 忻州, 山西

169

9 焦作, 河南

168

10 南阳, 河南

168

(当地时间)

查看世界AQI排名

实时杭州 AQI排名

实时杭州空气质量排名

小提示图标
#station美国 AQI
1 城厢镇 杭州

59

2 和睦小学 杭州

57

3 滨江 杭州

55

4 西溪 杭州

55

5 临平镇 杭州

50

6 下沙 杭州

50

7 浙江农大 杭州

50

8 Fire Brigade

45

9 卧龙桥 杭州

37

10 云栖 杭州

25

(当地时间)

查看世界AQI排名

美国 AQI

50

实时空气质量指数(AQI)
优秀

表示AQI等级的人脸

概览

杭州现在的空气质量指数(AQI)是多少?

空气污染等级空气质量指数(AQI)主要污染物
优秀 50 美国 AQItrendPM2.5
污染物浓度
PM2.5
12 µg/m³trend
pm10
16.5 µg/m³
o3
3 µg/m³trend
no2
41 µg/m³trend
so2
4.5 µg/m³trend
co
800 µg/m³

健康建议

杭州空气污染,如何做好防护?

开窗图标Open your windows to bring clean, fresh air indoors
骑车图标Enjoy outdoor activities

预报

杭州空气质量指数(AQI)预报

污染等级天气温度风速和风向
星期四, 4月 8

中等 71 美国 AQI

表示AQI等级的人脸
星期五, 4月 9

中等 64 美国 AQI

表示AQI等级的人脸
星期六, 4月 10

中等 77 美国 AQI

表示AQI等级的人脸
星期日, 4月 11

中等 94 美国 AQI

表示AQI等级的人脸
今天

对敏感人群不健康 125 美国 AQI

表示AQI等级的人脸
天气图标59°57.2°
风向359度流动

0 mp/h

星期二, 4月 13

不健康 152 美国 AQI

表示AQI等级的人脸
天气图标64.4°53.6°
风向64度流动

0 mp/h

星期三, 4月 14

中等 83 美国 AQI

表示AQI等级的人脸
天气图标57.2°51.8°
风向74度流动

6.7 mp/h

星期四, 4月 15

对敏感人群不健康 102 美国 AQI

表示AQI等级的人脸
天气图标66.2°50°
风向140度流动

2.2 mp/h

星期五, 4月 16

对敏感人群不健康 148 美国 AQI

表示AQI等级的人脸
天气图标73.4°55.4°
风向43度流动

2.2 mp/h

星期六, 4月 17

不健康 171 美国 AQI

表示AQI等级的人脸
天气图标64.4°50°
风向18度流动

11.2 mp/h

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历史

杭州历史空气质量图表

如何更好地远离空气污染侵害?

减少您在杭州 空气的污染暴露值

杭州 空气质量分析和数据

Is Hangzhou a city with bad air quality?

Hangzhou is a city located in the upper northeastern region of China, part of Zhejiang province, located at the southern side of the grand canal of China. It has a long history going back many millennia with a rich cultural heritage, and nowadays finds itself as one of the more desirable cities to live in throughout the country, with large amounts of commercial activity occurring, as well as being a hub for prestigious universities and IT firms.

In regards to its air quality, Hangzhou came in with a PM2.5 reading of 37.4 μg/m³ over 2019, as its yearly average. This reading put Hangzhou into the ‘unhealthy for sensitive groups’ ratings bracket, which requires a PM2.5 reading of anywhere between 35.5 to 55.4 μg/m³ to be classified as such. As the name indicates, those with a sensitivity towards pollution will find themselves at risk, as well as other vulnerable demographics such as young children, the elderly, pregnant mothers and those who are ill or have preexisting conditions being in danger of suffering from adverse effects.

Hangzhou’s PM2.5 reading of 37.4 μg/m³ also placed it in 161st place out of all cities ranked in China, as well as being ranked in 272nd place out of all cities worldwide. This is indicative that whilst Hangzhou does not share the same catastrophic levels of pollution as some of its fellow cities (such as Hotan coming in with a PM2.5 average of 110.1 μg/m³ over 2019), it stands to reason that the air quality is most certainly detrimental to those that breath it year round, particularly during months that see higher levels of smoke, haze and smog permeating the air.

What causes pollution in Hangzhou?

With a population of some 10.36 million inhabitants, Hangzhou will inevitably be subject to rising pollution levels caused by having such a large population, as with the mass movement of people in their daily commutes often comes large amounts of pollution.

One of the main causes would be that of vehicular emissions, with large amounts of urban infrastructure having been built to facilitate the ease of vehicle usage, causing many personal vehicles to be relied upon by the its citizens, although in recent years initiatives to reduce this with the use of more public transport as well as public bikes being put into play to reduce the effects of vehicular fumes and emissions.

Other sources of pollution would be from factories and industrial areas, many of which run on fossil fuels such as coal, giving off heavy amounts of pollution emanating from the combustion of this coal, as well as whatever industrial effluence is released as a byproduct of the materials or goods being produced.

So, to finish, with a rise in private car ownership as well as lower quality fuel being used (that also happens to be heavily subsidized and therefore finds it usage more prevalent), the main cause of pollution in Hangzhou comes from vehicles, with factories and other similar areas such as construction sites also contributing to the ambient year round pollution levels.

When is the air quality at its worst in Hangzhou?

Observing the data taken over the course of 2019, the months that stand out as having higher levels of PM2.5 were at the end of the year and very beginning of the year, with the months of October to December as well as January through to April all having the highest PM2.5 readings.

PM2.5 refers to fine particulate matter that is 2.5 micrometers or less in diameter, making it approximately 3% the size of a human hair and thus extremely dangerous to respire. It is due to this reason that it is used as a major component in calculating the quality of the air and how safe it is to breath.

Regarding the most polluted months, January came in with the highest PM2.5 reading at 62.9 μg/m³, putting it into the ‘unhealthy’ ratings bracket (55.5 to 150.4 μg/m³ required for classification), with December, February and March all following closely behind with similar readings, indicating that the colder months of the year are when pollution levels will be at their absolute worst.

When is the air quality cleanest in Hangzhou?

Contrasting the previous question, the air quality levels are shown to be at their best during the summer months in Hangzhou. The reasons behind this may be due to a decrease in the amount of heating being used in houses and places of business, which in turn leads to a large increase in the amount of energy being expended, typically finding its source from fossil fuel based factories. To a lesser extent, people in low income districts as well as provincial areas may resort to burning coal or other organic materials such as wood to provide heat for their homes, as well as for cooking, although this has largely been phased out in recent times and does not contribute as much to the overall pollution levels.

Looking once again at the data, the cleanest months ran from May through to September, with all of those months falling into the ‘moderate’ pollution bracket, a rating which requires a PM2.5 reading of anywhere between 12.1 to 35.4 μg/m³ to be classified as such.

The month with the lowest levels of PM2.5 was July, which came in with a PM2.5 reading of 20.8 μg/m³, followed closely by August and September, before the pollution levels began to rise rapidly again.

What are some health risks associated with pollution in Hangzhou?

With Hangzhou seeing PM2.5 readings go as high as 62.9 μg/m³ in January of 2019, it is evident that there would be some highly negative health risks that come along with this, although of note is that any reading above the WHO’s target number of 10 μg/m³ or less can present health issues, particularly to vulnerable demographics or those caught in highly polluted areas (such as those that have to take daily commutes in heavy traffic).

Health problems would include ailments such as increased rates of lung cancer, as well as respiratory illnesses such as bronchitis, pneumonia, emphysema and asthma, with vehicle pollutants such as nitrogen dioxide (NO2) being notorious for triggering off aggravated forms of asthma attacks and worsening other respiratory conditions.

Fine particulate matter can make its way into the blood stream via the lungs, and cause large amounts of damage to the blood vessels, the heart, the liver and kidneys as well as affecting the reproductive system, causing a reduction in fertility rates. These are but a few of the health conditions associated with breathing polluted air in Hangzhou.

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