People in major cities suffer from high levels of air pollution, causing health problems for many. What are the main reasons for this? What can be done to solve this problem?

Many megalopolises and big

cities

are known for their high levels of

air

pollution

, which cause serious illnesses and even premature death for

city

residents.

This

essay will discuss the principal reasons for bad

air

quality in

cities

and how

this

problem can be tackled. Urban

pollution

today is generated by several sources, with the single largest cause being vehicles. Today millions of

cars

crowd the narrow

city

streets.

As a result

, the poisonous particles emitted by the

cars

’ diesel and petrol engines become trapped between tall buildings, causing

the

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pollution

levels to accumulate. Some of the

pollution

Change to a plural noun

pollutions

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is

also

produced by domestic sources –

such

as heating systems – and manufacturing, though their contribution is usually significantly smaller. From my perspective, the most obvious approach to

clean

Wrong verb form

cleaning

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up

city

air

is to fight the biggest polluter — private

cars

. In order to reduce their numbers, two main policies may be required. The first one is improving public transport. If buses and trains were comfortable, affordable, and fast, more people would use them

instead

of driving. The second policy is the introduction of a tax on older

cars

. To avoid paying it,

car

owners will be incentivised to either upgrade to an eco-friendly electric vehicle or

to

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simply get rid of their

car

Fix the agreement mistake

cars

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completely. Implementation of these two policies together can help

cities

reduce

car

ownership and

thus

pollution

. In conclusion,

although

there are multiple sources of

air

pollution

in large

cities

, a significant improvement in

air

quality can be achieved by tackling the largest of them: petrol and diesel

cars

. In order to decrease their numbers, the government should increase the cost of owning a

car

and develop reliable public transport systems, so that

city

residents could use these

instead

.