圣地亚哥的空气质量

圣地亚哥的空气质量指数(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

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数据来源

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Ministerio del Medio Ambiente de Chile的主页标志Red Ciudadana de Calidad de Aire para la Primera Infancia的主页标志AirVisual的主页标志Ministerio del Medio Ambiente de Chile的主页标志IQAir的主页标志AirVisual的主页标志

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天气

圣地亚哥现在的天气怎么样?

天气图标
天气
温度57.2°C
湿度93%
风速和风向1.1 mp/h
气压1017 mb

实时AQI城市排名

实时智利 热门城市排名

小提示图标
#city美国 AQI
1 庫拉尼拉韋, Biobio

153

2 特賴根, Araucania

137

3 基約塔, Valparaiso

130

4 科羅內爾, Biobio

115

5 特木科, Araucania

108

6 Osorno, Los Lagos

105

7 阿里卡, Arica y Parinacota

97

8 圣地亚哥, 圣地亚哥首都大区

92

9 Chillan, Biobio

91

10 瓦尔帕莱索, Valparaiso

91

(当地时间)

查看世界AQI排名

实时圣地亚哥 AQI排名

实时圣地亚哥空气质量排名

小提示图标
#station美国 AQI
1 Red Ciudadana PENALOLEN ECOPARQUE

111

2 Penalolen JI. Penalolen

104

3 Penalolen- JI Cristo Joven

104

4 Independencia Antu Huilen

96

5 Red Ciudadana - Independencia

92

6 Red Ciudadana - Lo Barnechea Centro Lector

90

7 Red Ciudadana- El Tranque

88

8 Red Ciudadana - Lo Barnechea Instituto Estados Americanos

82

9 Red Ciudadana - Renca

82

10 Cerro Navia

70

(当地时间)

查看世界AQI排名

圣地亚哥 的网络图像

2:09, 4月 17

圣地亚哥 有空气污染吗

2:09, 4月 17圣地亚哥 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

圣地亚哥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
31.7 µg/m³trend

健康建议

圣地亚哥空气污染,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

圣地亚哥空气质量指数(AQI)预报

污染等级天气温度风速和风向
星期二, 4月 13

中等 75 美国 AQI

表示AQI等级的人脸
星期三, 4月 14

中等 79 美国 AQI

表示AQI等级的人脸
星期四, 4月 15

中等 78 美国 AQI

表示AQI等级的人脸
星期五, 4月 16

中等 69 美国 AQI

表示AQI等级的人脸
天气图标75.2°57.2°
风向236度流动

2.2 mp/h

今天

优秀 49 美国 AQI

表示AQI等级的人脸
天气图标78.8°59°
风向226度流动

2.2 mp/h

星期日, 4月 18

中等 53 美国 AQI

表示AQI等级的人脸
天气图标77°60.8°
风向235度流动

2.2 mp/h

星期一, 4月 19

中等 55 美国 AQI

表示AQI等级的人脸
天气图标69.8°55.4°
风向146度流动

0 mp/h

星期二, 4月 20

优秀 29 美国 AQI

表示AQI等级的人脸
天气图标62.6°53.6°
风向282度流动

2.2 mp/h

星期三, 4月 21

优秀 29 美国 AQI

表示AQI等级的人脸
天气图标62.6°51.8°
风向217度流动

2.2 mp/h

星期四, 4月 22

优秀 34 美国 AQI

表示AQI等级的人脸
天气图标68°51.8°
风向213度流动

2.2 mp/h

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历史

圣地亚哥历史空气质量图表

如何更好地远离空气污染侵害?

减少您在圣地亚哥 空气的污染暴露值

圣地亚哥 空气质量分析和数据

What is the state of the air pollution in Santiago, Chile?

Santiago is also known as Santiago de Chile and is the capital and largest city of Chile as well as one of the largest cities in the Americas. It was named after the biblical figure of St. James who is the patron saint of Spain. It is located entirely in the central valley and is home to an estimated population of 7 million. The majority of which live in the densely-populated urban area. The fast-flowing Mapocho River flows through the valley and Santiago stands on both sides of it.

The mighty Andes mountain range can be seen from nearly all parts of the city, but the close proximity to this creates the problem of lingering smog, especially during the winter months when there is less rainfall.

In the second quarter of 2021, Santiago was experiencing a period of “Moderate” air quality with a US AQI reading of 87. This classification is in line with recommendations by the World Health Organisation (WHO). The concentration of PM2.5 was 29.3 µg/m³. With a level such as this, it is advisable to close doors and windows to prevent the ingress of dirty air into the rooms and those of a sensitive disposition are advised against outdoor activity until the air quality shows signs of improvement.

Does the air quality differ throughout the year in Santiago?

For 8 months of the year in 2020, Santiago reported “Moderate” levels of air quality with figures between 12.1 and 35.4 µg/m³. For the summer months of May, June and July, the quality was slightly worse when the category entered the “Unhealthy for sensitive groups” with figures between 35.5 and 55.4 µg/m³. For the remaining month of December, Santiago saw an improvement with readings between 10 and 12 µg/m³.

Looking back at records from previous years it can be seen that the air quality remains about the same. In 2017 the annual average figure was 23.1 µg/m³, followed by 29.4 µg/m³ the following year. 2019 saw a slight improvement with a mean reading of 27.7 µg/m³, before showing a marked improvement of 23.6 µg/m³ in 2020.

What is the cause of air pollution in Santiago?

The growth of air pollution stems from both increased industrialisation and environmental factors that continue to affect the region’s climate and are critical to the country’s health. As is common with many other cities throughout the world, the two main causes of polluted air are ozone (O3) and PM2.5.

The main contributors to the accumulation of PM2.5 are vehicle exhaust fumes, fossil-fuel-powered power stations and various industrial processes. Agricultural burning and ammonium emissions from agricultural processes are all a result of increased industrialisation in Chile’s main cities, especially Santiago.

The situation often deteriorates during the winter months due to the prevalence of firewood used to heat homes and business premises. Additionally, constructions zones, agricultural fields, and dirt roads produce detached sediment particles that are transported by the wind to the streets in the cities.

Because of Santiago’s position between two mountain ranges, the Andes and the Cordillera de la Costa, a pocket is created where stale air accumulates and takes longer to disperse.

Although carbon dioxide (CO2) is the main greenhouse gas (GHG) that contributes to global warming, there are other pollutants that also compound the problem. Due to their different characteristics to CO2, can also be an important part of the problem. One of them is the short-lived climate pollutant black carbon (BC) or soot. Black carbon contributes to global warming with a potential up to 1,500 times greater than carbon dioxide.

This pollutant is a major component of fine particulate matter, and in Chile, it comes mainly from the burning of firewood and from means of transportation.

How can Santiago's air quality be improved?

There are many ways in which an individual can help to reduce air pollution.

  • Cycle or walk to work using one of the many cycle tracks and pedestrian zones
  • Reduce the use of private vehicles.
  • Use public transport, if it is necessary to make longer journeys.
  • Practice sustainable driving: drive calmly, do not accelerate too much and check the tyre pressure. This can save fuel because the vehicle will operate efficiently.
  • Opt for telecommuting, if possible.
  • If you are going to buy a car or motorcycle, choose one that is low energy consumption. Euro 3 motorcycles can already be found at some dealerships.
  • Avoid activities that involve any type of burning.
  • Reduce the use of aerosols.
  • Correctly separate waste and reuse as much as possible.
  • Obtain and use products and services that stand out for their positive environmental impacts.
  • Take care of the green areas of the city, which function as oxygen generators.
  • When riding a motorcycle, use semi-synthetic lubricating oil. It lasts longer and reduces emissions.

The local government needs to encourage the purchase of electric vehicles, possibly by offering subsidies and ensuring there are suitable charging stations throughout the city. Above all, drivers need to have confidence in their new purchase.

What are the health implications of breathing polluted air in Santiago?

Air pollutants contribute to a decrease in lung function and an increase in bronchial reactivity, decrease exercise tolerance and increase the risk of chronic obstructive bronchitis, pulmonary emphysema, exacerbation of bronchial asthma and lung cancer, amongst other effects. . In Chile, since 1980, studies have multiplied that demonstrate the effects of air pollution, especially particles, on daily mortality, respiratory symptoms and consultations. These studies, carried out first in Santiago and later in Temuco have confirmed the results reported in international publications that have established that for every 50 µg/m³ increase in PM10 levels in 24 hours, there is an average increase of about 3 per cent in general mortality. These studies have also detected that an increase in PM10 is associated with an increase in respiratory and cardiovascular mortality.

Another relevant fact is the presence of polycyclic aromatic hydrocarbons (PAHs), as components of the particulate material. These compounds are produced by the incomplete combustion of organic material (oil, gasoline, wood, coal and biomass in general). Numerous types of PAHs have been identified in the organic fraction of particulate matter in cities with high levels of atmospheric pollution; six of them have been classified as carcinogenic by the International Agency of Research on Cancer with benzo α-pyrene being the PAH most carcinogenic in cigarette smoke and in smog in highly polluted cities, such as Santiago.

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