A report revealed that pollution has been linked to nine million deaths worldwide in 2015.

Almost all these deaths occurred in low and middle income countries, where pollution could account for up to a quarter of deaths. Bangladesh and Somalia were the worst affected.

Air pollution had the biggest impact, accounting for two-thirds of deaths from pollution.

Brunei and Sweden had the lowest numbers of pollution-related deaths.

Most of these deaths were caused by non-infectious diseases linked to pollution, such as heart disease, stroke and lung cancer.

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