The graph shows that Europe had the highest level of SO2 emissions in 1975. This means that it likely had the worst air quality (based on this limited information) because SO2 is a pollutant. The likely cause of the poor air quality is burning coal. Coal is a fuel, and it is burned.

Most pollution in London is caused by road transport and domestic and commercial heating systems. The UK Air Quality Standards Regulations 2010 sets standards for a number of pollutants than can harm human health and the environment. These are based on EU limit values and include: sulphur dioxide (SO2)

Transport is the biggest source of air and noise pollution in the UK. Surface transport for example is responsible for around a quarter of UK emissions of carbon dioxide (CO2) – a major contributor to climate change, and traffic noise blights many neighbourhoods.

The combustion of fossil fuels like coal, petroleum and other factory combustibles is a major cause of air pollution. Meanwhile, emissions caused by gasoline-burning vehicles – i.e. CO, CO², nitrogen oxides, particulates and water vapor – are also a significant source of air pollution.

25 Amazing Ways to Prevent Water Pollution

• Keep out oils, fat, or grease from the sink.
• Abstain from flushing contaminated liquids, pills, drugs, or medications down the drain.
• Desist from using the toilet as a bin.
• Ensure minimal use of bleach or detergents.
• Reduce the use of herbicides, pesticides, and fertilizers.
• Proper sewage treatment and management.

Sources of Water Pollution

• Sewage (Waste Water) Sewage is another name for waste water from domestic and industrial processes.
• Agricultural Pollution. The agriculture industry covers 76% of the land area of England and Wales.
• Oil Pollution.
• Radioactive Substances.
• River dumping.
• Marine Dumping.

What Are the Different Types of Water Pollution?

• Chemical pollution. The most common type of water pollution, chemicals can infiltrate both underground water sources and those sitting on the Earth’s surface.
• Groundwater pollution.
• Microbiological pollution.
• Nutrient pollution.
• Oxygen-depletion pollution.
• Surface water pollution.

Groundwater is also one of our most important sources of water for irrigation. Unfortunately, groundwater is susceptible to pollutants. Groundwater contamination occurs when man-made products such as gasoline, oil, road salts and chemicals get into the groundwater and cause it to become unsafe and unfit for human use.