大阪市的空气质量

大阪市的空气质量指数(AQI)和PM2.5空气污染

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带有彩色AQI图标的IQAir地图

空气质量提供者和数据来源

数据来自

数据提供者

2

数据来源

2

Atmospheric Environmental Regional Observation System (AEROS)的主页标志1 匿名数据提供者的主页标志IQAir的主页标志Atmospheric Environmental Regional Observation System (AEROS)的主页标志

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天气

大阪市现在的天气怎么样?

天气图标
天气中雨
温度48.2°C
湿度100%
风速和风向1.1 mp/h
气压1018 mb

实时AQI城市排名

实时日本 热门城市排名

#city美国 AQI
1 大月市, 山梨县

152

2 Naka, Saitama

151

3 Daiba, Tokyo

149

4 东京, Tokyo

149

5 Shiki, Saitama

144

6 Mizumotokoen, Tokyo

139

7 武藏野市, Tokyo

135

8 Nishitokyo, Tokyo

134

9 Kiyose, Tokyo

132

10 Higashikurume, Tokyo

127

(当地时间)

查看世界AQI排名

实时大阪市 AQI排名

实时大阪市空气质量排名

#station美国 AQI
1 Kamiyamacho

92

2 Osaka City Central Public Hall

55

(当地时间)

查看世界AQI排名

大阪市 的网络图像

12:16, 1月 23

大阪市 有空气污染吗

12:16, 1月 23大阪市 的网络图像缩略图

美国 AQI

92

实时空气质量指数(AQI)
中等

表示AQI等级的人脸

概览

大阪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
中等 92 美国 AQItrendPM2.5
污染物浓度
PM2.5
31.6 µg/m³trend

健康建议

大阪市空气污染,如何做好防护?

开窗图标请关窗以防止室外脏空气进入室内
骑车图标敏感人群应减少室外运动

预报

大阪市空气质量指数(AQI)预报

污染等级天气温度风速和风向
星期二, 1月 19

优秀 21 美国 AQI

表示AQI等级的人脸
星期三, 1月 20

中等 54 美国 AQI

表示AQI等级的人脸
星期四, 1月 21

中等 80 美国 AQI

表示AQI等级的人脸
星期五, 1月 22

中等 86 美国 AQI

表示AQI等级的人脸
今天

优秀 41 美国 AQI

表示AQI等级的人脸
天气图标48.2°46.4°
风向19度流动

8.9 mp/h

星期日, 1月 24

优秀 30 美国 AQI

表示AQI等级的人脸
天气图标48.2°46.4°
风向354度流动

4.5 mp/h

星期一, 1月 25

优秀 27 美国 AQI

表示AQI等级的人脸
天气图标53.6°44.6°
风向356度流动

8.9 mp/h

星期二, 1月 26

优秀 27 美国 AQI

表示AQI等级的人脸
天气图标59°42.8°
风向47度流动

2.2 mp/h

星期三, 1月 27

优秀 27 美国 AQI

表示AQI等级的人脸
天气图标50°48.2°
风向49度流动

4.5 mp/h

星期四, 1月 28

优秀 20 美国 AQI

表示AQI等级的人脸
天气图标51.8°44.6°
风向323度流动

6.7 mp/h

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历史

大阪市历史空气质量图表

如何更好地远离空气污染侵害?

减少您在大阪市 空气的污染暴露值

大阪市 空气质量分析和数据

Does Osaka have polluted air?

Osaka is the capital city of the Osaka prefecture in Japan, being a considerable financial hub as well as home to many large multinational electronics companies, such as Panasonic. It has a long history of being an important cultural and economic center for the country, and this continues on today. As with all economic areas with well developed infrastructure, there often comes issues of pollution, mainly based off of industry as well as the mass movement of people, particularly regarding day to day commutes. Of note is that Osaka and indeed much of Japan has taken many steps to improve its pollution levels following its industrialization during the previous century.

Regarding it pollution levels taken over 2019, Osaka came in with a yearly average PM2.5 reading of 13.5 μg/m³, placing it into the ‘moderate’ pollutions rating bracket, which requires a PM2.5 reading of anywhere between 12.1 to 35.4 μg/m³ to be classed as such. This shows that whilst Osaka came in on the lower end of this moderate rating bracket, being only 1.5 units away from moving down to the ‘good’ air quality bracket (requiring 10 to 12 μg/m³ for classification), it still has some pollutive issues, as any PM2.5 reading over the World Health Organizations target goal of 10 μg/m³ may cause health issues to those exposed to poorer air quality, particularly if done over extended periods of time as well as on vulnerable demographics, such as the young, elderly, expectant mothers as well as those with preexisting health conditions or compromised immune systems.

What are the main causes of pollution in Osaka?

Alongside many major economic and industrial cities in Japan, Osaka sees much of its pollution arising from similar sources. Among the two main ones are fumes coming from the use of vehicles, and with some 2.6 million inhabitants living in the city, there would undoubtably be a large amount of pollution stemming from the use of personal cars, motorbikes, as well as more heavy duty vehicles such as lorries, trucks and buses, some of which are still running on diesel fuels.

Whilst Osaka has considerable amounts of public transportation infrastructure, rush hour traffic and any vehicle usage will result in the inevitable build up of certain pollutants, as well as photochemical pollutants arising as a result of these chemicals being exposed to strong sunlight during summer months, which often results in the coined term of ‘smog’.

Other forms of pollution in Osaka would be from the numerous factories around the city’s limits. Whilst they would have more stringent rules in place than other far more polluted cities in Asia, once again it is inevitable that any factories that rely on combustion (particularly of fossil fuels such as coal) and release any kind of industrial smoke related to the product being made (as an example, certain product facilities or even plastic recycling plants inevitably release burnt plastic fumes, although with containment protocols this can be limited). To summarize, the two main sources are vehicular and factory based emissions.

When is pollution at its worst in Osaka?

Once again observing the data taken over 2019, the months that came in with the highest readings of PM2.5 were recorded at the very end of the year in December, and continuing on into the earlier months of the year, coinciding with the colder winter months, often due to the increased demand for heating for both homes and businesses, with Osaka experiencing some fairly drastic cold spells during its winter, and as such the subsequent demand for heating would rise significantly. From January through to May is when pollution levels were on average at their worst, with the first three months of the year showing the highest readings of PM2.5, coming in at 15.1 μg/m³, 22.5 μg/m³ and 16.3 μg/m³ respectively, making February the most polluted month of the year in Osaka, more than double that of its cleanest months.

When is air quality cleanest in Osaka?

In contrast to the previous question, the cleanest months fell within the summer and autumnal seasons, with the pollution levels showing their aforementioned decline during the coldest times. From June to November is when the air quality levels showed significant improvements, with less smoke, haze and pollutants permeating the atmosphere.

In June the PM2.5 reading was 13 μg/m³, followed by 11.6 μg/m³ in July, an improvement and also a drop from the ‘moderate’ pollution bracket down into the ‘good’ ratings one. August came in with a slightly worse reading of 12.2 μg/m³, followed by the cleanest months of the year, September and October, both of which fell within the WHO's target goal for clean air quality, with readings of 9 μg/m³ and 9.4 μg/m³ respectively, making September the cleanest month of the year and with a great quality of air, although a further reduction bringing its number closer to 0 would of course be most optimal.

November also showed a decent rating, coming in within the ‘good’ bracket rating at 11.1 μg/m³, before declining quickly again in the final month of the year as mentioned before.

What are the main pollutants found in the air in Osaka?

With much of its pollution arising from the use of vehicles, the pollution would be largely associated with these activities. Chemical compounds and fine particulate matter released from associated fumes would include ones such as nitrogen dioxide (NO2) and sulfur dioxide (SO2), with nitrogen dioxide being the most prominent out of the two, often being found in high concentrations in any areas that see high volumes of traffic, so much so to the point that concentrations of NO2 can accurately be used to predict how much pollution is being caused by vehicular use alone.

Oxides of nitrogen can also undergo the photochemical reactions when exposed to sunlight, creating pollutants such as ozone (O3) to permeate the air at ground level. Whilst this is a vital compound in the upper stratosphere, when on the ground level it can have highly negative effects on human health, causing significant damage to the lungs and triggering off respiratory problems such as reduced lung function and asthma attacks. Other pollutants would include fine particulate matter such as black carbon, and volatile organic compounds (VOC's) such as benzene and formaldehyde, both of which have palpable risks to human health.

大阪市哪里空气最干净