Uncategorizedair pollution due to vehicle emissions

Vehicle Emissions have been the curse that came with the development and urbanization of humankind and its path is not on a downhill. Since 2000, the number of CO2 emissions has increased insanely each year. What was calculated to be 2.2 billion metric tons of CO2 emissions in 2000, has reached 3.2 billion metric tons in 2020. So what are these emissions and why should we care about them?

What are Vehicle Emissions and how are they caused?

When an air-fuel mixture burns within an internal combustion engine, carbon dioxide is released into the atmosphere. This results in vehicle exhaust emissions. Vehicle exhaust emissions are produced by diesel, petrol, and other hybrid vehicles. 

The composition of exhaust emissions from gasoline and diesel-powered cars varies. It can depend on the operational parameters of the vehicle as well as the kind of fuel used. Carbon dioxide, nitrogen oxides, and other particulate matters make up a large portion of vehicle exhaust emissions. Some of these are the greenhouse gases that are responsible for the depleting air quality all over the world.

Why are Vehicle Emissions dangerous?

vehicle emissions air pollution

In 2015, on-road diesel cars were responsible for about half of the global health effects of vehicle pollution. As we have already read, a major part of vehicle emissions are greenhouse gases. And there are a humongous amount of reasons for which greenhouses gases are a danger to everyone. There are a whole lot of other reasons that make vehicle emissions deadly and they are :-

1. Toxic Emissions

   a. Particulate matter

Particulate matters are a combination of solid particles and liquid droplets prevalent in the air. Firstly, they contribute to the atmospheric haze. Secondly, these particles can harm your lungs and enter your bloodstream.

   b. Carbon monoxide (CO)

Carbon Monoxide is produced when fuels such as petrol and diesel are consumed in an automobile. Breathing CO-rich air has an adverse effect on vital organs such as the heart and brain. The Environmental Protection Agency declared that the source of around 95 percent of CO emissions in cities is motor vehicle exhausts.

   c. Nitrogen dioxide (NO2)

When fuel is burned, nitrogen and oxygen combine to generate nitrogen oxides. Emissions from automobiles, trucks, buses and off-road equipment produce nitrogen dioxide (NO2). Breathing air with a high quantity of NO2 can harm the respiratory system.

2. Greenhouse Gases and Climate Change

climate change

Greenhouse gases are released into the atmosphere because of vehicle emissions. At normal levels, greenhouse gases assist the Earth by trapping some of the sun’s heat and making it warm. However, when the level of greenhouse gases rises, it results in a temperature escalation. This results in global warming.

In addition, greenhouse gases also cause climate change. They include extreme weather, food supply shortages, and increasing wildfires. Moreover, the weather patterns we’ve become accustomed to will shift; some species will vanish; others will relocate or expand. 

3. Health Effects

Particulate matter is responsible for up to 30,000 premature deaths each year. The contaminants in this polluted air cause lung infection and cancer.

Hydrocarbons are also known to be harmful to human health. They have the potential to induce heart disease, harm the central nervous system, and cause breathing problems. Moreover