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World Air Quality Report 2022 highlights pollution hotspots

Envirotec Magazine

Santiago, Chile: The country hosted eight of the most polluted cities in the Americas in 2022. A nuanced appraisal emerges from the 2022 World Air Quality report – compiled by Swiss air quality technology company IQAir – which includes a dismal picture from Africa and the news that only five countries met the WHO limits for PM2.5:

Pollution 260
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Almost nowhere on Earth safe from PM2.5, says Melbourne study

Envirotec Magazine

Calcutta, India: In southern Asia and eastern Asia, more than 90% of days had daily PM 2.5 A lack of pollution monitoring stations has meant a shortfall of data on local, national, regional and global PM 2.5 In southern Asia and eastern Asia, more than 90% of days had daily PM 2.5 µg/m 3 ) and Southern Asia (37.2

Asia 265
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Counting the microns

Envirotec Magazine

A couple of recent studies attempt to document the changing profile of this pollutant, and its prevalence in different regions of the world. Reacting to IQAir’s latest report, Greenpeace International senior air quality scientist Aidan Farrow said that “In 2023 air pollution remained a global health catastrophe.” levels in 2023.

Asia 148
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Seeking clarity

Envirotec Magazine

Late August saw the release of “Air Quality and Health In Cities”, the latest edition of The State of Global Air report, produced annually by the US Health Effects Institute. It attempts a snapshot of air pollution exposure in over 7000 cities worldwide, and its impact on health. in Asia is brick kilns.

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Tropical megacities enter new phase of declining air

Envirotec Magazine

A new study appears to reveal rapid degradation in air quality in megacities in Africa, Asia and the Middle East – as well as increases in urban exposure to air pollutants hazardous to health. South Asia – Ahmedabad, Bangalore, Chennai, Chittagong, Dhaka, Hyderabad, Karachi, Kolkata, Mumbai, Pune, Surat.

Asia 130
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Report pulls back the curtain on chemical pollution in the ocean

Envirotec Magazine

A new report attempts to provide a diagnostic of the scale of the ocean pollution challenge facing humanity. The Invisible Wave: Getting to zero chemical pollution in the ocean has been prodeuced by Back to Blue, an initiative of Economist Impact and The Nippon Foundation. A coordinated approach.

Pollution 163
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SDG for wastewater treatment is not enough, according to new modelling approach

Envirotec Magazine

So conclude researchers at Utrecht University, who have developed a new water quality model they say will better appraise the current and future pollution status of rivers and streams globally. In addition to identifying hotspots of water quality issues, the model can help with attributing the source of pollution to particular sectors.

Pollution 214