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The city’s air quality index fluctuated between unhealthy and hazardous levels during the last two days, resembling the conditions in some major Asian metropolitan areas.
Rio de Janeiro and São Paulo were ranked the 12th and 17th most polluted cities in an evaluation based on World Bank and United Nations data of emissions and air quality in 18 mega-cities. The multi-pollutant index used to perform the evaluation did not include any of the pollutants specific to the air quality impacts of ethanol fuel use. [17]
Deforestation in the Maranhão state, Brazil, in July 2016. The Amazon rainforest, spanning an area of 3,000,000 km 2 (1,200,000 sq mi), is the world's largest rainforest.It encompasses the largest and most biodiverse tropical rainforest on the planet, representing over half of all rainforests.
The Amazon rainforest, [a] also called Amazon jungle or Amazonia, is a moist broadleaf tropical rainforest in the Amazon biome that covers most of the Amazon basin of South America. This basin encompasses 7,000,000 km 2 (2,700,000 sq mi), [ 2 ] of which 6,000,000 km 2 (2,300,000 sq mi) are covered by the rainforest . [ 3 ]
Clouds of dense gray smoke from dozens of wildfires in the Brazilian Amazon, many of them illegally started, have hung over the region's capital city Manaus, making the air increasingly unbreathable.
The Amazon rainforest could be reaching an irreversible tipping point beyond which it will decline until “we’re just left with scrub”, conservationists have warned.
The most commonly used air quality index in the UK is the Daily Air Quality Index recommended by the Committee on the Medical Effects of Air Pollutants (COMEAP). [39] This index has ten points, which are further grouped into four bands: low, moderate, high and very high. Each of the bands comes with advice for at-risk groups and the general ...
SAO PAULO (Reuters) -Destruction across the Amazon rainforest so far this year has slowed dramatically, down 55.8% from the same period a year ago in a major turnaround for the region vital to ...