What are the 3 main causes of air pollution?
The main causes of air pollution can be categorized by source:
- Mobile: Cars, buses, planes, trucks and trains.
- Stationary: Power plants, oil refineries, industrial facilities and factories.
- Area: Agricultural areas, cities and wood-burning fireplaces.
- Natural: Wind-blown dust, wildfires and volcanoes.
How is India affected by air pollution?
Air pollution can reduce the life expectancy of Indians by nine years, says a report by a US research group. The study says 480 million people in northern India face the “most extreme levels of air pollution in the world” and, over time, these high levels have expanded to cover other parts too.
Why is the air quality so bad in Mumbai?
The sea breeze over Mumbai usually keeps the air clean. But wind speed has been low or stagnant for three days. Thus, emissions from road and metro construction activities and vehicular movement are getting trapped in the air, raising the AQI.
How does transportation affect air quality?
Air pollution emitted from transportation contributes to smog, and to poor air quality, which has negative impacts on the health and welfare of U.S. citizens. Pollutants that contribute to poor air quality include particulate matter (PM), nitrogen oxides (NOx), and volatile organic compounds (VOCs).
What causes poor air quality?
There are many factors that can lead to poor air quality, but the two most common are related to elevated concentrations of ground-level ozone or particulate matter. Sunshine, rain, higher temperatures, wind speed, air turbulence, and mixing depths all affect pollutant concentrations.
Is the air quality in India good?
California’s air quality is worse than India’s. At times during the past few days, parts of the Bay Area have been blanketed by a thin layer of ash while enduring the worst air quality in the world.
What is AQI of Mumbai today?
Mumbai Air Pollution: Real-time Air Quality Index (AQI)
| Current | Min | |
|---|---|---|
| PM2.5 AQI | 204 | 169 |
| PM10 AQI | 154 | 100 |
| O3 AQI | 18 | 12 |
| NO2 AQI | 18 | 6 |