Air quality in Salamanca

Air quality index (AQI) and PM2.5 air pollution in Salamanca

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Weather

What is the current weather in Salamanca?

Weather icon
WeatherBroken clouds
Temperature62.6°C
Humidity67%
Wind4.2 mp/h
Pressure1016 mb

live aqi city ranking

Real-time Mexico city ranking

#city US AQI
1 Ajalpan, Puebla

164

2 Metepec, State of Mexico

153

3 Tlalixtac de Cabrera, Oaxaca

153

4 Santiago de Queretaro, Queretaro

130

5 Toluca, Mexico City

127

6 Salamanca, Guanajuato

122

7 Mexico City, Mexico City

115

8 Tlalpan, Mexico City

114

9 Xonacatlan, State of Mexico

114

10 Alvaro Obregon, Mexico City

107

(local time)

SEE WORLD AQI RANKING

live Salamanca aqi ranking

Real-time Salamanca air quality ranking

#station US AQI
1 Estación Cruz Roja

86

2 Estación Nativitas

74

3 Estación DIF

72

(local time)

SEE WORLD AQI RANKING

US AQI

122

live AQI index
Unhealthy for Sensitive Groups

Human face indicating AQI level

Overview

What is the current air quality in Salamanca?

Air pollution levelAir quality indexMain pollutant
Unhealthy for Sensitive Groups 122 US AQItrendPM2.5
PollutantsConcentration
PM2.5
44µg/m³trend
PM10
62µg/m³trend
O3
0.1µg/m³
NO2
0µg/m³
SO2
0µg/m³
CO
1465.6µg/m³trend
!

PM2.5

x8.8

PM2.5 concentration in Salamanca air is currently 8.8 times above the WHO annual air quality guideline value

Health Recommendations

How to protect from air pollution in Salamanca?

An IQAir mask icon Sensitive groups should wear a mask outdoors
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An IQAir purifier icon Run an air purifier
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An open window iconClose your windows to avoid dirty outdoor air
A man cycling iconEveryone should reduce outdoor exercise

Forecast

Salamanca air quality index (AQI) forecast

DayPollution levelWeatherTemperatureWind
Thursday, May 19

Moderate 91 US AQI

Human face indicating AQI level
Weather icon93.2°60.8°
Wind rotating 270 degree

8.9 mp/h

Friday, May 20

Moderate 92 US AQI

Human face indicating AQI level
Weather icon93.2°60.8°
Wind rotating 319 degree

6.7 mp/h

Saturday, May 21

Moderate 98 US AQI

Human face indicating AQI level
Weather icon95°62.6°
Wind rotating 47 degree

15.7 mp/h

Sunday, May 22

Moderate 87 US AQI

Human face indicating AQI level
Weather icon91.4°62.6°
Wind rotating 196 degree

13.4 mp/h

Today

Unhealthy for Sensitive Groups 122 US AQI

Human face indicating AQI level
Weather icon91.4°60.8°
Wind rotating 282 degree

11.2 mp/h

Tuesday, May 24

Moderate 55 US AQI

Human face indicating AQI level
Weather icon89.6°59°
Wind rotating 272 degree

4.5 mp/h

Wednesday, May 25

Moderate 63 US AQI

Human face indicating AQI level
Weather icon91.4°64.4°
Wind rotating 76 degree

11.2 mp/h

Thursday, May 26

Moderate 91 US AQI

Human face indicating AQI level
Weather icon89.6°59°
Wind rotating 51 degree

15.7 mp/h

Friday, May 27

Moderate 71 US AQI

Human face indicating AQI level
Weather icon91.4°60.8°
Wind rotating 47 degree

15.7 mp/h

Saturday, May 28

Moderate 58 US AQI

Human face indicating AQI level
Weather icon93.2°60.8°
Wind rotating 61 degree

11.2 mp/h

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Historical

Historic air quality graph for Salamanca

How to best protect from air pollution?

Reduce your air pollution exposure in Salamanca

AIR QUALITY ANALYSIS AND STATISTICS FOR Salamanca

What is the current level of air pollution in Salamanca?

Salamanca is a city in the Mexican state of Guanajuato. According to a census conducted in 2020, Salamanca had an estimated population of 275,000 people. The petrochemical industry is the primary one in the city, giving rise to numerous companies and bus transport services available for employees. The strategy was to boost the creation and development of the so-called "industrial corridor" of the Bajio.

At the beginning of 2022, Salamanca was experiencing a period of “Moderate” air quality with a US AQI reading of 59. This United States Air Quality Index number is an internationally used set of metrics supported by the World Health Organisation (WHO) and is used to compare the air quality in different cities throughout the world using comparable standards. It is calculated by using the levels of the six most commonly found pollutants such as nitrogen dioxide, sulphur dioxide, ozone, carbon monoxide and both sizes of particulate matter, which are PM2.5 and PM10. If all six figures are not always available in which case, a level is calculated by using what data there is. In Salamanca, all six major pollutants were measured. They were as follows; PM2.5 - 16 µg/m³, PM10 - 24 µg/m³, ozone (O3) - 0.1 µg/m³, nitrogen dioxide (NO2) - 0 µg/m³, sulphur dioxide (SO2) - 0 µg/m³ and carbon monoxide (CO) - 2015.2 µg/m³.

This level of PM2.5 is just over one and a half times the recommended safe level of 10 µg/m³ as suggested by the World Health Organisation (WHO) as being an acceptable level. Although no amount of air pollution is considered to be safe.

When air pollution is classified as being “Moderate” the given advice would be to remain indoors as much as possible, closing doors and windows to prevent the ingress of more polluted air. Those who are more sensitive to poor quality air should avoid venturing outside until it improves. If this is unavoidable, then a good quality face mask should be worn at all times. All types of outdoor exercise should be avoided until the air quality improves. There is a downloadable app from AirVisual.com which is suitable for all operating systems and gives the latest information regarding air quality in real-time.

Does the level of air pollution vary much throughout the year in Salamanca?

Air quality can be affected by many things, therefore it can and does change rapidly depending on the local conditions. Looking back at the 2020 figures published by IQAir.com, it can be seen that for the entire twelve months, the air quality was classified as “Moderate” with figures between 12.1 and 35.4 µg/m³. The cleanest month was September with a figure of 13.6 µg/m³, the dirtiest was April at 21.9 µg/m³.

Records for air quality were first kept in 2017 when a figure of 25.1 µg/m³ was recorded. There was an improvement the following year with a reading of 20.9 µg/m³, and this repeated itself in 2019. In 2020, the figure was recorded as 18.0 µg/m³ but this lower figure was almost expected because it would have been affected by the COVID-19 pandemic as many vehicles were no longer in daily use because the offices were closed and the staff encouraged to work from home, in an attempt to halt the spread of the virus. Many factories and non-essential production units were also required to close which removed their emissions from the atmosphere, albeit on a temporary basis. Worldwide, cities reported a much better quality of air due to the general lack of traffic pollution in city centres due to the pandemic.

What is the main source of air pollution in Salamanca?

Built 70 years ago, the "engineer Antonio M. Amor" refinery in Salamanca, Guanajuato, is one of the two main generators of pollutants in the state and one of the critical points of sulphur dioxide emissions in the world, according to the classification of the worst global sources of contamination by this pollutant, made by Greenpeace, based on data from NASA.

The oil and petrochemical industry in the state generates 91.17% of the amount of sulphur dioxide that is emitted into the air in the state; 38.77 per cent of PM10 particles; 29.28 per cent of PM2.5 particles; 16.46 per cent carbon monoxide; 40.30 per cent nitrogen oxides; and 45.40 per cent volatile organic compounds.

What can be done to improve air quality in Salamanca?

Specific actions included the removal of lead from gasoline, implementation of catalytic converters in automobiles, reduction of sulphur content in diesel fuel, substitution of fuel oil in industry and power plants with natural gas, reformulation of liquefied petroleum gas for cooking and heating, reinforcement of vehicle inspection and maintenance program, and implementation of “no driving day (Hoy No Circula)” rule.

It has also implemented climate change strategic programs with clear and specific targets, including green energy (e.g., solar panels), energy efficiency programs for public buildings, and sustainable development of natural resources and biodiversity.

With health and environmental policies aimed at reducing air pollution, the city is seeing cleaner air even as it continues to expand and grow. The densely populated urban area is an ideal place to put clean air policies to work — and help save thousands of lives.

What are the detrimental effects of breathing in polluted air?

Many residents experience some form of air pollution-related symptoms, such as watery eyes, coughing, or wheezing. Even for healthy people, polluted air can cause irritation or breathing difficulties during exercise or outdoor activities. Your actual risk depends on your current health status, the type and concentration of the contaminant, and the length of time you are exposed to contaminated air.

People who are most likely to experience serious health problems from air pollution are:

  • People with heart or lung disease.
  • People with respiratory problems such as asthma or emphysema.
  • Pregnant women.
  • People working outdoors.
  • Children under the age of 14, whose lungs are still developing.
  • Elderly residents whose immune systems are weaker.
  • Athletes vigorously exercising outdoors.

Prolonged exposure to polluted air can have permanent health effects such as accelerated ageing of the lungs and loss of lung capacity leading to a lower lung function. Development of diseases such as asthma, bronchitis, emphysema, and possibly cancer thus leading to a possible shortening of life.

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