Qualité de l’air à Mexico

Indice de qualité de l’air (IQA) et pollution de l’air (PM2.5) à Mexico

DERNIÈRE MISE À JOUR (Heure locale)

321K personnes suivent cette ville

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Carte IQAir avec points colorées AQI

Contributeurs de données sur la qualité de l'air

Données fournies par

Contributeurs

3

Sources de données

4

Le logo du profil de Instituto Nacional de Ecologia y Cambio Climatico (INECC)Le logo du profil de Gobierno De La Ciudad De MexicoLe logo du profil de 5 contributeur anonymeLe logo du profil de PurpleAirLe logo du profil de Instituto Nacional de Ecologia y Cambio Climatico (INECC)Le logo du profil de Gobierno De La Ciudad De Mexico

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Temps

Quel temps fait-il actuellement à Mexico?

Icône météo
TempsPartiellement nuageux
Température68°C
Humidité28%
Vent4.6 mp/h
Pression1026 mb
La pollution de l'air a coûté environ6,100 morts*à Mexico en 2021EN SAVOIR PLUS*La pollution de l'air a aussi coûté $3,200,000,000 USD à Mexico en 2021

Classement IQA des villes en direct

Classement en direct des principales villes au Mexique

Icône d'info-bulle
#cityIQA US
1 Celaya, État de Guanajuato

170

2 Metepec, State of Mexico

164

3 Alvaro Obregon, Mexico City

156

4 Acolman, State of Mexico

155

5 Mexico, Mexico City

155

6 Tultitlan, Mexico City

153

7 Azcapotzalco, Mexico City

152

8 Coyoacán, Mexico City

145

9 Abasolo, État de Guanajuato

144

10 Gustavo A. Madero, Mexico City

142

(Heure locale)

CLASSEMENT MONDIAL DE l’IQA

Classement IQA en direct à Mexico

Classement de la qualité de l’air en direct à Mexico

Icône d'info-bulle
#stationIQA US
1 Colegio del Pilar S C

159

2 Avenida Sur de Los 100 Metros

156

3 Calle Galileo

155

4 Educacion

145

5 Merced

134

6 Monte Parnaso

119

7 Pedregal

99

8 Miguel Hidalgo

11

(Heure locale)

CLASSEMENT MONDIAL DE l’IQA

Mexico webcam

3:08, avr. 23

L’air est-il pollué à Mexico?

Vignette de Mexico webcam à 3:08, avr. 23

IQA US

155

IQA en direct
Mauvais pour la santé

Visage humain indiquant le niveau AQI

Vue d’ensemble

Quelle est la qualité de l’air actuellement à Mexico?

Niveau de pollution de l’airIndice de pollution de l’airPrincipaux polluants
Mauvais pour la santé 155 IQA UStrendPM2.5
PolluantsConcentration
PM2.5
63.4 µg/m³trend
pm10
49.5 µg/m³trend
o3
0.1 µg/m³trend
no2
0.1 µg/m³trend
so2
0 µg/m³trend
co
1156.5 µg/m³trend

Recommandations de santé

Comment se protéger de la pollution de l’air à Mexico?

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Prévision

Prévision de l’indice de qualité de l’air (IQA) à Mexico

JourNiveau de pollutionTempsTempératureVent
lundi, avr. 19

Moyen 96 IQA US

Visage humain indiquant le niveau AQI
mardi, avr. 20

Mauvais pour les personnes sensibles 145 IQA US

Visage humain indiquant le niveau AQI
mercredi, avr. 21

Mauvais pour les personnes sensibles 128 IQA US

Visage humain indiquant le niveau AQI
jeudi, avr. 22

Mauvais pour les personnes sensibles 133 IQA US

Visage humain indiquant le niveau AQI
Icône météo80.6°66.2°
Vent tournant à 201 degré

8.9 mp/h

Aujourd’hui

Mauvais pour les personnes sensibles 140 IQA US

Visage humain indiquant le niveau AQI
Icône météo80.6°62.6°
Vent tournant à 25 degré

8.9 mp/h

samedi, avr. 24

Moyen 92 IQA US

Visage humain indiquant le niveau AQI
Icône météo78.8°60.8°
Vent tournant à 358 degré

13.4 mp/h

dimanche, avr. 25

Mauvais pour les personnes sensibles 101 IQA US

Visage humain indiquant le niveau AQI
Icône météo80.6°62.6°
Vent tournant à 101 degré

4.5 mp/h

lundi, avr. 26

Mauvais pour les personnes sensibles 142 IQA US

Visage humain indiquant le niveau AQI
Icône météo84.2°64.4°
Vent tournant à 180 degré

6.7 mp/h

mardi, avr. 27

Mauvais pour la santé 158 IQA US

Visage humain indiquant le niveau AQI
Icône météo86°64.4°
Vent tournant à 209 degré

6.7 mp/h

mercredi, avr. 28

Mauvais pour les personnes sensibles 109 IQA US

Visage humain indiquant le niveau AQI
Icône météo82.4°64.4°
Vent tournant à 281 degré

15.7 mp/h

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Historique

Graphique de l’historique de la qualité de l’air à Mexico

Comment se protéger au mieux de la pollution de l’air?

Réduire votre exposition à la pollution de l’air à Mexico

ANALYSES ET STATISTIQUES DE LA QUALITé DE L’AIR POUR Mexico

What is the air quality index of Mexico City?

Mexico City is (often abbreviated as CDMX) the capital and largest city of Mexico and the most populous city in North America. In 2009 the population for the city itself was 8.8 million people but when looking at the entire metropolitan region, this number swells to 21.3million. At the beginning of 2021, Mexico City was experiencing a “Moderate” level of air quality with a US AQI reading of 74. This follows the classification by the World Health Organisation (WHO). The concentration of PM2.5 was 23.3 µg/m³ but the level of sulphur dioxide (SO2) was 0 µg/m³.

What is the main source of air pollution in Mexico City?

Vehicles represent a major source of air pollution in Mexico City. The automotive fleet includes a large group of vehicles propelled by the combustion of hydrocarbons (fossil fuels) and include mopeds, cars and trucks.

The emissions from the exhausts of these vehicles contain carbon monoxide, hydrocarbons and nitrogen oxides that are released into the atmosphere in significant quantities; they are the components of "photochemical oxidising smog". For this reason, the most populated urban areas are those that suffer the most pollution of this type.

Another aggravating factor in the growing air pollution is the geographical location of the city. Because it is in a valley, when the intensity of the winds is reduced, the diffusion of pollutants in the atmosphere is minimal. For almost 7 months a year, the area maintains on average low-speed winds (less than 1.5 m/sec.), Altitude also plays a part in the high rate of pollution, since the low oxygen content causes deficiencies in the internal combustion processes of the engines. In Mexico City, a cubic meter of air contains 212 grams of oxygen, while at sea level it contains 275. The combustion efficiency of a well-tuned car is 92 per cent, and in the DF 69 per cent, due to the higher altitude.

What is the history of the pollution level in Mexico City?

Throughout 2019, Mexico City’s registered air quality was between 12.1 and 35.4 µg/m³. The highest level recorded was in May when the figure jumped to 34 µg/m³. Looking back over previous years, it is not seen to change by a noticeable amount. In 2017 the reading was 20.4 µg/m³ followed by 19.7 µg/m³ in 2018. The average figure for 2019 was 20.5 µg/m³, so not much different.

Is air pollution in Mexico City getting better or worse?

Back in the 1980s and 1990s lead, ozone, sulphur and carbon were so common that residents used to say that birds would fall from the sky because of it.

As the Mexican economy grew at that time, so did the number of vehicles on the road and emissions from factories increased at an alarming rate. It earned the accolade of the world’s most polluted city. A management programme was introduced which introduced reforms that would clean up the air. Levels of ozone were reported to be around 500 parts per billion (ppb), they are now at a more respectable level of between 120 and 150 ppb.

In 1986 natural gas was being introduced as a replacement for fuel oil in industry and in thermoelectric power generation. In 1989, both city and regional governments introduced a “Cars don’t circulate” (Hoy No Circula) which eliminated about one-fifth of the cars on rotating days between Monday to Friday from the city, depending on the last digit of their registration plates. Higher quality unleaded fuel was made readily available and stricter emissions were established through the broad use of catalytic converters.

In the 80s and 90s, Mexico City issued “red” alerts almost constantly whereas now, they maybe happen as rarely as three or four times per year.

What can be done to improve the air quality in Mexico City?

One way to protect the health of the population is through continuous monitoring and dissemination of the status of air quality. In Mexico City, the Atmospheric Monitoring System (SIMAT) is responsible for the permanent measurement of the main air pollutants.

SIMAT has more than 40 monitoring sites distributed in the metropolitan area, including demarcations of the Federal District and the metropolitan area of the State of Mexico. These sites are known as air quality monitoring stations, and most of them use continuous equipment to measure the criteria pollutants required by federal regulations such as sulphur dioxide, carbon monoxide, nitrogen dioxide, ozone and suspended particles. In some of them, continuous measurements of the main surface meteorological variables are also made, including ultraviolet solar radiation. In the rest, manual equipment is used to collect samples of suspended particles and atmospheric deposition.

Based on information gathered by these systems is the government able to act in a way to mitigate the impact of high levels of pollution. The ban on driving cars into the city is one such example.

It is estimated that there are some 4.7 million vehicles registered in Mexico City and 5.3 million in the entire metropolitan area. It is estimated that 80 per cent are for private use, 7 per cent correspond to public transport and 13 per cent to cargo transportation. On a brighter note though, it is thought that private cars represent only one-third of the total trips made by the inhabitants daily, while public transport accounts for the remaining two thirds.

It is recognised that cargo transportation (of which more than 700,000 units are registered) is essential for the country's economy but is highly polluting, as it causes problems of road traffic, increased noise and emissions of black carbon and fine particles.

The cars in general used in Mexico City are of poorer quality than their USA counterparts. It is estimated that they create 8 - 10 times more pollution than USA vehicles due to the strict rules and regulations there.

What are the effects of breathing Mexico City’s poor quality air?

Long-term exposure to air pollutants can not only imply effects such as watery eyes, cough or irritation in the throat, it is also associated with heart disease, cerebrovascular infarctions, lung diseases and cancer, in the case of adults, as well as acute respiratory diseases in minors, such as asthma.

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