多伦多的空气质量

多伦多的空气质量指数(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

4

数据来源

3

IQAir的主页标志Government of Ontario, Ministry of the Environment的主页标志Ontario Ministry of the environment的主页标志2 匿名数据提供者的主页标志PurpleAir的主页标志Government of Ontario, Ministry of the Environment的主页标志

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天气

多伦多现在的天气怎么样?

天气图标
天气乌云密布
温度41°C
湿度87%
风速和风向4.6 mp/h
气压1011 mb

实时AQI城市排名

实时加拿大 热门城市排名

小提示图标
#city美国 AQI
1 艾伯特亲王城, 薩斯喀徹溫

87

2 Whitecourt, 艾伯塔

85

3 Bruderheim, 艾伯塔

80

4 Lumby, 不列颠哥伦比亚

77

5 道森市, 育空

68

6 Lamont, 艾伯塔

68

7 白石, 不列颠哥伦比亚

61

8 Coldstream, 不列颠哥伦比亚

60

9 里贾纳, 薩斯喀徹溫

59

10 卡斯尔加, 不列颠哥伦比亚

58

(当地时间)

查看世界AQI排名

实时多伦多 AQI排名

实时多伦多空气质量排名

小提示图标
#station美国 AQI
1 Queens Quay West

52

2 111Pacific Avenue

25

3 Toronto Downtown

21

4 Toronto West

12

5 Toronto East

8

6 Toronto North

8

(当地时间)

查看世界AQI排名

多伦多 的网络图像

12:18, 4月 17

多伦多 有空气污染吗

12:18, 4月 17多伦多 的网络图像缩略图

美国 AQI

17

实时空气质量指数(AQI)
优秀

表示AQI等级的人脸

概览

多伦多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 17 美国 AQIPM2.5
污染物浓度
PM2.5
4 µg/m³
o3
24 µg/m³
no2
23.5 µg/m³

健康建议

多伦多空气污染,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

多伦多空气质量指数(AQI)预报

污染等级天气温度风速和风向
星期二, 4月 13

优秀 20 美国 AQI

表示AQI等级的人脸
星期三, 4月 14

优秀 19 美国 AQI

表示AQI等级的人脸
星期四, 4月 15

优秀 13 美国 AQI

表示AQI等级的人脸
星期五, 4月 16

优秀 15 美国 AQI

表示AQI等级的人脸
天气图标50°37.4°
风向328度流动

6.7 mp/h

今天

优秀 36 美国 AQI

表示AQI等级的人脸
天气图标51.8°41°
风向320度流动

6.7 mp/h

星期日, 4月 18

优秀 41 美国 AQI

表示AQI等级的人脸
天气图标57.2°39.2°
风向218度流动

11.2 mp/h

星期一, 4月 19

优秀 23 美国 AQI

表示AQI等级的人脸
天气图标46.4°33.8°
风向281度流动

4.5 mp/h

星期二, 4月 20

优秀 16 美国 AQI

表示AQI等级的人脸
天气图标32°32°
风向330度流动

15.7 mp/h

星期三, 4月 21

优秀 11 美国 AQI

表示AQI等级的人脸
天气图标41°30.2°
风向279度流动

15.7 mp/h

星期四, 4月 22

优秀 10 美国 AQI

表示AQI等级的人脸
天气图标55.4°37.4°
风向290度流动

13.4 mp/h

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历史

多伦多历史空气质量图表

如何更好地远离空气污染侵害?

减少您在多伦多 空气的污染暴露值

多伦多 空气质量分析和数据

Does Toronto have polluted air?

Toronto is a city located in the southern region of Canada, being the capital of the province of Ontario. It is the 4th most populous city in North America, as well as the most populous in Canada itself, with some 2.7 million or more people inhabiting it.

Toronto is also well known as a center for finance and business, seen as the financial district of Canada. Besides media and tech related industries, it is also known for its mass production and exportation of materials and goods related to the industrial sector, producing a variety of metals, vehicles, chemicals and machinery to ship around the world. As such, with any heavily populated city with industries such as these, there are bound to be polluted related issues being a prominent part of year round life.

In 2019 Toronto came in with a PM2.5 average of 7.4 μg/m³, putting into the World Health Organizations (WHO's) target bracket for the best quality of air, with closer to 0 being the most optimal in terms of air cleanliness and breathability. This is a respectable reading for such a largely populated city, one that places it (and Canada) into the upper echelons of least polluted cities and countries across the globe. Toronto’s 2019 reading of 7.4 μg/m³ placed it into 3652nd place out of all cities ranked worldwide, as well as 62nd place out of all cities ranked in Canada.

This shows that the quality of air in Toronto is indeed very good, however it has a few small aspects to it as a whole that can causes some health issues related to pollution, as well as accumulations of smoke and fumes during certain times of the year, which will be discussed in short.

What are the main causes of pollution in Toronto?

With a large and growing population, Toronto subsequently will have much of its pollution stemming from anthropogenic activities, particularly that of mass movement and transit. It seems that areas that witness the greatest amounts of pollution and cause the greatest concern for health amongst its citizens are areas that have high volumes of traffic.

Busy motorways and city roads that are subject to large amounts of cars often have hazardous readings of chemical compounds and particulate matter around them, both on ground level and in the atmosphere above. Despite having a very well developed public transport infrastructure, many people still stick to travelling and commuting via personal vehicles, with cars and motorbikes taking up large amounts of room on the roads, as well as heavy duty vehicles such as trucks, lorries and buses all contributing to pollution levels, often running on diesel fuels that put out larger amounts of pollution than their smaller or cleaner counterparts would.

The other most prominent cause is that of factory and industrial area emissions, tied directly to the heating of homes and businesses during the long and cold winters that Toronto sees. Much of the fuel used to provide this energy and heat finds itself coming from fossil sources such as coal. On top of this, the industrial areas and factories, besides running on the already polluting fuel sources, will also be putting out large volumes of their own novel pollutants, based primarily on what is being produced at any particular site. It is from these that many toxic chemicals enter the air, along with dangerous forms of fine particulate matter and even heavy metals such as lead, mercury and cadmium.

When is the air quality at its worst in Toronto?

Observing the data taken over 2019 is a great example of year round averages, due to 2020 being subject to worldwide lockdowns and thus reduced levels of pollution because of the covid-19 pandemic. Although the drop in air pollution was indeed a great occurrence as a side effect of a bad situation, it is not truly indicative of how Toronto’s air quality would be under more normal circumstances, hence why 2019 will be looked at.

As such, the months that stood out over 2019 that had the worst quality of air were somewhat sporadic, with the very beginning, middle and end of the year all showing months that had elevated levels of pollution, with the most prominent one being in the first quadrant of the year. Whilst 11 months out of all twelve fell into the WHO's target goal of 10 μg/m³ or less, there was one month to break out of this, which was February that came in with a sizeable reading of 17.2 μg/m³, putting it much further up into the ‘moderate’ pollution bracket, which requires a PM2.5 reading of 12.1 to 35.4 μg/m³ to be classed as such.

This reading is nearly three times that of some of the lower PM2.5 readings, and was followed fairly closely with other more polluted months such as March, July, November and December, which all came in with readings of 9.5 μg/m³, 8.9 μg/m³, 8.5 μg/m³ and 8.8 μg/m³ respectively, showing poorer levels of air quality but not quite matching the worst month of February, with its excessively high jump in pollution levels.

When is the air quality cleanest in Toronto?

In contrast to the previous question, the months that saw the best levels of air quality and lowest PM2.5 readings were placed sporadically between April to October, with some fluctuations occurring but generally being when the air quality was lower and more stable.

From August through to October is when some of the better readings came in, with PM2.5 levels of 6.3 μg/m³, 6.1 μg/m³ and 5.4 μg/m³ all being recorded respectively, making October the cleanest month out of the entire year.

What are the main pollutants in the air in Toronto?

With much of its pollution stemming from sources such as vehicle emissions, alongside factories and industrials areas, the pollutants would have a certain standardization to them. For vehicles, the main offending culprits are nitrogen dioxide (NO2) and sulfur dioxide (SO2), both of which can cause significant harm to people’s respiratory system as well as interfere with the environment.

Other such toxic materials and compounds coming from industrial areas would be a wide range of ones, with black carbon being a prominent material released from the combustion of fossil fuels, along with polycyclic aromatic hydrocarbons, dioxins and furans, as well as volatile organic compounds (VOC's), some of which include benzene, toluene, xylene and formaldehyde.

Whilst these are all harmful to human health, especially when respired over long periods of time, it of note that in cities such as Toronto where the air remains extremely clean for most of the year, a lot of the damage done to health can be location and lifestyle based, with those who live near areas of heavy traffic or industry being the most at risk, as well as commuters themselves who do not take the proper precautionary measures to keep themselves safe from inhaling the aforementioned pollutants.

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