Gloria Dickie wrote this article in Reuters:

 Worsening outdoor air pollution and toxic lead poisoning have kept global deaths from environmental contamination at an estimated 9 million per year since 2015 - countering modest progress made in tackling pollution elsewhere, a team of scientists reported Tuesday.

Air pollution from industry processes along with urbanization drove a 7% increase in pollution-related deaths from 2015 to 2019, according to the scientists' analysis of data on global mortality and pollution levels.

"We're sitting in the stew pot and slowly burning," said Richard Fuller, a study co-author and head of the global nonprofit Pure Earth. But unlike climate change, malaria, or HIV, "we haven't given (environmental pollution) much focus."

An earlier version of the work published in 2017 also estimated the death toll from pollution at roughly 9 million per year - or about one of every six deaths worldwide - and the cost to the global economy at up to $4.6 trillion per year. That puts pollution on par with smoking in terms of global deaths. COVID-19, by comparison, has killed about 6.7 million people globally since the pandemic began.

For their most recent study, published in the online journal Lancet Planetary Health, the authors analyzed 2019 data from the Global Burden of Disease, an ongoing study by the University of Washington that assesses overall pollution exposure and calculates mortality risk.

The new analysis looks more specifically at the causes of pollution - separating traditional contaminants such as indoor smoke or sewage from more modern pollutants, like industrial air pollution and toxic chemicals.