川崎市的空气质量

川崎市的空气质量指数(AQI)和PM2.5空气污染

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空气质量提供者和数据来源

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Kanagawa Prefectural Government的主页标志Kanagawa Prefectural Government的主页标志

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天气

川崎市现在的天气怎么样?

天气图标
天气中雨
温度57.2°C
湿度82%
风速和风向6.9 mp/h
气压1023 mb

实时AQI城市排名

实时日本 热门城市排名

小提示图标
#city美国 AQI
1 Koyo, Aichi

76

2 Hanamigawa, Chiba

74

3 Chuo, 神奈川縣

68

4 Imahashicho, Aichi

63

5 Domachi, 山形县

61

6 Senzo, 兵库县

61

7 Ayase, 神奈川縣

59

8 Aoe, 岡山縣

57

9 Kitatamachi, 靜岡縣

57

10 Miho, 靜岡縣

57

(当地时间)

查看世界AQI排名

实时川崎市 AQI排名

实时川崎市空气质量排名

小提示图标
#station美国 AQI
1 Kawasaki City Hall

37

(当地时间)

查看世界AQI排名

川崎市 的网络图像

9:12, 4月 12

川崎市 有空气污染吗

9:12, 4月 12川崎市 的网络图像缩略图

美国 AQI

37

实时空气质量指数(AQI)
优秀

表示AQI等级的人脸

概览

川崎市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 37 美国 AQIPM2.5
污染物浓度
PM2.5
9 µg/m³
pm10
11 µg/m³trend
no2
39.5 µg/m³trend
so2
2.6 µg/m³

健康建议

川崎市空气污染,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

川崎市空气质量指数(AQI)预报

污染等级天气温度风速和风向
星期五, 4月 9

优秀 33 美国 AQI

表示AQI等级的人脸
星期六, 4月 10

优秀 32 美国 AQI

表示AQI等级的人脸
星期日, 4月 11

优秀 42 美国 AQI

表示AQI等级的人脸
星期一, 4月 12

优秀 43 美国 AQI

表示AQI等级的人脸
今天

优秀 27 美国 AQI

表示AQI等级的人脸
天气图标60.8°57.2°
风向188度流动

20.1 mp/h

星期三, 4月 14

优秀 43 美国 AQI

表示AQI等级的人脸
天气图标60.8°50°
风向347度流动

13.4 mp/h

星期四, 4月 15

中等 54 美国 AQI

表示AQI等级的人脸
天气图标57.2°50°
风向68度流动

4.5 mp/h

星期五, 4月 16

中等 56 美国 AQI

表示AQI等级的人脸
天气图标60.8°53.6°
风向150度流动

11.2 mp/h

星期六, 4月 17

中等 51 美国 AQI

表示AQI等级的人脸
天气图标60.8°57.2°
风向201度流动

8.9 mp/h

星期日, 4月 18

优秀 44 美国 AQI

表示AQI等级的人脸
天气图标60.8°53.6°
风向69度流动

4.5 mp/h

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历史

川崎市历史空气质量图表

如何更好地远离空气污染侵害?

减少您在川崎市 空气的污染暴露值

川崎市 空气质量分析和数据

Does Kawasaki have good air quality?

Kawasaki is a city in Japan, located in the Kanagawa prefecture, being counted as one of the bigger cities in the great Tokyo area. It is a large and densely populated city, being the 8th most populous out of the whole of Japan. Kawasaki has an estimated population of some 1.5 million or more inhabits, with over 700 thousand households present. These facts would certainly present the city with some pollution issues, as high population density coupled with development and infrastructure often leads to several sources of pollution being present.

In 2019, Kawasaki came in with PM2.5 readings of 11.3 μg/m³, placing it into the ‘good’ ratings bracket, which requires a PM2.5 reading of anywhere between 10 to 12 μg/m³ to be classed as such. This bracket requires a very fine margin of entry, and indicates a respectable quality of air, although with room for improvement. Any PM2.5 reading over the World Health Organizations (WHO) target goal of 0 to 10 μg/m³ can have adverse effects on the health of those who respire polluted air, with incidences of these adverse effects going up in correlation with higher readings.

Kawasaki’s yearly average of 11.3 μg/m³ was enough to put it into 2068th place out of all cities ranked worldwide, as well as 267th place out of all cities ranked in Japan. As touched on before, this is a good quality of air, as its rating would infer, however there are months when pollution levels rise significantly, and as such, there would be plenty of room for improvement for the quality of air in Kawasaki.

What are the main causes of pollution in Kawasaki?

Having been a major powerhouse in the movement of driving Japan's massive economic growth during the 60’s and 70’s, Kawasaki subsequently had large amounts of industrial areas, power plants and factories scattered around the city’s limits. Whilst their pollutive output is not as high as it may once have been, and with far tighter and more stringent regulations on what chemicals factories are allowed to pump out, it still stands to reason that with a large amount of its economy based on the production and exportation of goods, large amounts of pollution would also arise from this singular source.

Other causes of pollution would be further anthropogenic (human caused) ones, and with the aforementioned large and condensed population, there would be the inevitable high usage of personal vehicles, with fumes from cars and motorbikes helping to drive up the year round ambient pollution levels, as well as industrial heavy duty vehicles such as lorries, buses and trucks also contributing, carrying goods in and out of the city as well as ferrying people and other products around within the city itself.

These heavy duty vehicles often run on diesel fuels, and although Japan is several steps ahead of many countries in the region in regards to rules and regulations, the continued use of diesel fuel inevitably ends up being a factor that contributes to both noxious chemical compounds as well as dangerous particulate matter being in the air. These would be the two leading factors in air pollution in Kawasaki, vehicular and industrial emissions.

When is pollution at its worst in Kawasaki?

Observing the data taken over 2019 (with this year being the most optimal in recent times due to the covid-19 outbreak skewing pollution readings due to mass lockdowns), the months that came in with the highest PM2.5 readings were spread out through the beginning portion of the year, not having a particularly strong pattern to them, but nevertheless being relegated to the first three quarters of the year, with fluctuating PM2.5 levels going between ‘good’ rating readings up to ‘moderate’ readings, which requires a PM2.5 number of anywhere between 12.1 to 35.4 μg/m³ to be classed as such.

The months that came in with the highest levels of pollution were February, March, May and August, with readings of 16 μg/m³, 13.4 μg/m³, 12.4 μg/m³ and 12.8 μg/m³ respectively. This indicates that February was by far the most polluted month out of the year, with PM2.5 readings close to double that of the cleanest readings. Whilst these numbers are not excessive by any means, they could still present some health risks to vulnerable portions of the population, with demographics such as the young, elderly, the immunocompromised or those with preexisting health conditions being the most at risk, along with pregnant mothers also being highly vulnerable.

When is the air quality at its cleanest in Kawasaki?

In contrast to the previous question, the months that came in with the cleanest qualities of air occurred towards the end of the year, with only two months out of the entire year falling into the WHO's target goal of 10 μg/m³ or less, representing the best quality of air, with closer to 0 of course being the most optimal.

After another spike in pollution in August of 12.8 μg/m³, the level fell to 10.3 μg/m³ in September, before reaching the two cleanest months of October and November. They both had PM2.5 readings of 9 μg/m³ and 8.9 μg/m³ respectively, making October the cleanest month of the year, and as mentioned the PM2.5 readings were nearly half of what was recorded in the most polluted month of February. In the months of October and November, the air would be significantly freer from smog, haze, fumes and other contaminants that spoil the quality of air and cause adverse effects amongst those breathing it.

What type of pollutants would be found in the air in Kawasaki?

With much of its pollution coming from combustive sources such as factories, industrial areas as well as vehicle emissions, the subsequent pollution and particulate matter would follow accordingly. In areas that see high volumes of cars, particularly in the city center or along major motorways, chemical compounds such as nitrogen dioxide (NO2) and sulfur dioxide (SO2) would be found in abundance, with nitrogen dioxide being the most prominent of the two in terms of its release from vehicles.

Other pollutants released from industrial areas would be all manner of metals, many of which are toxic and can enter into the air in fine particles, or into the food chain and even bodies of water. These would be iron particles, along with more dangerous metals such as mercury, cadmium, lead and chromium.

Lastly, pollutants such as black carbon and volatile organic compounds would be found, both finding their creation in the combustion of fossil fuels as well as organic matter, and thus would be found coming both from factories as well as vehicles that run on diesel. Some examples of VOC's would be highly dangerous chemicals such as benzene, toluene, xylene and formaldehyde.

川崎市空气质量数据来源

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