Pollution in news on April 12
Here’s a round-up of today’s news reports and developments on pollution
Countries agreed to ban ozone-depleting chemicals in 1980s — but 5 CFCs are increasing to record levels in atmosphere
The 1987 Montreal protocol restricted the release of chlorofluorocarbons to the atmosphere
Diwali 2021: Elevated levels of toxic gases in smog, in addition to particulate matter, says CSE
Average daily contribution of stubble fire smoke from mid-October to early November lowest in the last four years
Factsheet: HFCS - realising the potential for climate benefits from the Montreal Protocol
In 1987, the Montreal Protocol phased out the use of chlorofluorocarbons (CFCs), an ozone-depleting substance (ODS) used as coolants in …
China’s anti-pollution measures have backfired
A new study says China’s efforts to bring down PM 2.5 concentration has in turn led to a spike in Ozone pollution
Heatwaves leading to ozone pollution, says WMO report
Climate change continues to increase heatwaves’ intensity; extreme heat ‘compounded’ measurably impacts air quality, it adds
Greenhouse gas emissions from man-managed grasslands similar to global croplands
Study highlight need to use sustainable management to preserve and enhance soil carbon storage of grasslands
Did a supernova trigger the late Devonian extinction?
Earth suffered an intense loss of species diversity that lasted for at least 300,000 years, possibly caused by long-lasting ozone depletion, …
How dust storms are adding to pollution woes of north India
Such storms lead to increase in surface ozone, particulate matter as well as harmful greenhouse gases
Chloroform emissions may slow down Ozone layer recovery
MIT study traces rise in emissions to eastern China, where it appears that production using chloroform is on the rise
In Delhi, deadly air pollution is never out of season
After a deadly smog episode in winter, the city witnessed severe ozone pollution this summer, followed by a spike in PM10 level due to pre-…
Climate change-driven wildfires, heatwaves to worsen air quality & levy additional ‘climate penalty’
Surface ozone levels are expected to increase across heavily polluted areas, particularly in Asia
Concentration of air pollutants significantly increasing over India: IPCC
Just effective decarbonisation policies not enough to bring SO2, NO2, O3 and NH3 to safe levels; clean energy and waste management would be needed
Why indoor pollution is as deadly as its outdoor counterpart
With the continual improvement in our quality of life, indoor air quality has become an important area of concern in the 21st century
‘Solid, liquid waste may have overtaken fertilisers as the biggest source of N2O emissions’
Nandula Raghuram, chair of International Nitrogen Initiative, talks to DTE on the rise in nitrous oxide emissions, its repurcussions and …
2022 too short, too far: Environment news you should not miss
Down To Earth recaps the primary environment, health and developmental news from 2022
Ozone levels increase in Delhi, pose health risk
This could lead to a public health crisis as ozone is extremely hazardous to human health
‘Modest’ 2023 Antarctic ozone hole ranks 12th overall but still sign of recovery
The depletion would have been lower had it not been for the eruption of the Hunga Tonga-Hunga Ha’apai volcano in January 2022
Satellites are burning up in upper atmosphere — and we still don’t know what impact this will have on Earth’s climate
Elon Musk’s SpaceX has announced it will dispose of 100 Starlink satellites over the next six months
Simply Put: Ozone hole and loop hole
Ozone pollution increases male-male courtship in common fruit flies: Study
High level of ozone leads to drop in sex-determining pheromones
Ozone layer to recover in 4 decades but aerosol injection may undo gains: UNEP
The success of the Montreal Protocol can inspire climate action, say scientists
Iodine drives substantial ground-level ozone loss in Arctic, climate change altering natural processes: Study
Such high concentrations of Iodine was not seen in Arctic before, say scientists
Antarctic ozone hole now larger, thinner & may take longer to recover. Mesosphere has a role to play: Study
Meteorological conditions could have largely driven fluctuations in the size of the Antarctic ozone hole
Simply put: High ozone levels pose health risk in Delhi