Ozone - Environmental Professionals Connection

Ozone Pollution: An Insidious and Growing Threat to Biodiversity

Yale E360

OCTOBER 7, 2021

Ground-level ozone has long been known to pose a threat to human health. Now, scientists are increasingly understanding how this pollutant damages plants and trees, setting off a cascade of impacts that harms everything from soil microbes, to insects, to wildlife. Read more on E360 ?.

Ozone

Ozone Ground-Level Ozone

Evolving Air Quality Standards

Legal Planet

NOVEMBER 9, 2023

I am focusing on what are called the primary standards, which are health-based, and on two key pollutants, particulates and ozone, which have the greatest current importance. Ozone Pollution (Smog) Ozone standards are measured in parts per million (ppm) in the air. With that in mind, I’ve put together some brief timelines.

Ozone

Ozone Clean Air Act Air Pollution 2008

The Ozone Hole Showed Humans Could Damage Earth and That We Could Heal It

Scientific American

SEPTEMBER 12, 2023

The discovery of a hole in Earth’s protective ozone layer in 1985 led to a worldwide effort to heal it, but are there lessons that can be applied to today’s treaty talks on climate change?

Ozone

Ozone Climate Change

Smoke from Australian Wildfires Thinned Ozone Layer, Study Finds

Yale E360

MARCH 18, 2022

Smoke from bushfires that spread across Australia in late 2019 and early 2020 destroyed high-altitude ozone in the Southern Hemisphere, according to a study that offers new insight into the threat posed by wildfires. Read more on E360 ?.

Ozone

Ozone 2019 2020

Ozone Treaty Delayed Arctic Melting by 15 Years

Scientific American

MAY 23, 2023

The Montreal Protocol was intended to save Earth’s ozone layer, but it also helped slow global warming and delayed the melting of Arctic sea ice

Ozone

Ozone Climate Change

Deja Vu One More Time? What Will Happen If EPA Ignores CASAC Regarding the Ozone NAAQS?

Law and Environment

APRIL 3, 2023

Last week, Inside EPA (subscription required) reported that the Clean Air Science Advisory Committee has pretty much agreed that the National Ambient Air Quality Standards for ozone must be made more stringent. What Will Happen If EPA Ignores CASAC Regarding the Ozone NAAQS? The post Deja Vu One More Time?

Ozone

Ozone 2024 Regulations Law

The hole in the ozone layer has opened unusually early this year

New Scientist

AUGUST 14, 2023

The ozone hole over Antarctica may get close to its record size this year due to repercussions from the ferocious Tonga volcano eruption in 2022

Ozone

Ozone 2022

EPA Will Reconsider the Ozone NAAQS — What Is An Adequate Margin of Safety, Anyway?

Law and Environment

NOVEMBER 1, 2021

On Friday, EPA announced that it was reconsidering its 2020 decision to leave the National Ambient Air Quality Standards for ozone unchanged. However, EPA stated that it: will reconsider the decision to retain the ozone NAAQS in a manner that adheres to rigorous standards of scientific integrity. Still whistling in the wind , I fear.

Ozone

Ozone Clean Air Act Regulations 2020

New Climate Research From a Year-Long Arctic Expedition Raises an Ozone Alarm in the High North

Inside Climate News

JUNE 23, 2021

By Bob Berwyn After sampling the atmosphere above the Arctic for more than a year during the MOSAiC research voyage , climate scientists say the ozone layer, Earth’s protection against intense ultraviolet radiation, is at risk, despite the progress made in protecting atmospheric ozone by the 1987 Montreal Protocol , the global treaty that banned ozone-harming (..)

Ozone

Ozone Climate Scientist Radiation Atmosphere

What Exactly is Ozone? The Good, the Bad & the Ugly

Breezometer

DECEMBER 7, 2021

Our ozone layer serves as a lifesaving UV barrier for planet earth, functioning to absorb most of the sun’s ultraviolet radiation. At the same time, ground-level ozone pollution is extremely harmful to human health. As the complexity of ozone pollution is often misunderstood, let's take a closer look at this particular pollutant.

Ozone

Ozone Ground-Level Ozone Nitrogen Oxides Radiation

Chemicals used to make decaf coffee are contributing to ozone damage

New Scientist

MAY 25, 2023

A group of unregulated polluting gases known as very short-lived substances are partly responsible for depleting the ozone layer in the tropics

Ozone

Recent Megafire Smoke Columns Have Reached the Stratosphere, Threatening Earth’s Ozone Shield

Inside Climate News

MARCH 17, 2022

New research warns that wildfire emissions could unravel progress made under the Montreal Protocol to shrink atmospheric ozone holes.

Ozone

Ozone Atmosphere Climate Change

The Upper Atmosphere Is Cooling, Prompting New Climate Concerns

Yale E360

MAY 18, 2023

Scientists are worried about the effect this cooling could have on orbiting satellites, the ozone layer, and Earth’s weather. A new study reaffirming that global climate change is human-made also found the upper atmosphere is cooling dramatically because of rising CO2 levels. Read more on E360 →

Atmosphere

Atmosphere Cooling Ozone Climate Change

Australia's Massive Wildfires Shredded the Ozone Layer--Now Scientists Know Why

Scientific American

MARCH 10, 2023

Smoke from the catastrophic 2019–2020 fires in Australia unleashed ozone-eating chlorine molecules into the stratosphere

Ozone

Ozone 2019 2020 Climate Change

The ozone layer was damaged by Australia’s Black Summer megafires

New Scientist

MARCH 17, 2022

Ozone levels above the mid-southern hemisphere dropped 13 per cent after Australia’s worst fires on record due to chemical reactions triggered by the smoke

Ozone

The EJ Movement Wants to Tighten the NAAQS. Will It Happen?

Law and Environment

AUGUST 1, 2023

and ozone are important EJ issues. and ozone disproportionately impact EJ communities. and ozone NAAQS will thus be an important test of the political power of the EJ community. Specifically, with respect to PM 2.5 , WHEJAC recommended that the annual primary standard be lowered to 8.0 As WHEJAC notes in its letter, both PM 2.5

Ozone

Ozone 2024 Politics 2025

One of the longest-lived ozone holes on record is about to close

New Scientist

DECEMBER 21, 2021

This year has been characterised by cold and strong polar vortices, resulting in strong ozone depletion and a reminder of how much the ozone hole can vary annually as it heals

Ozone

Ozone layer treaty pushed back ice-free Arctic summers up to 15 years

New Scientist

MAY 22, 2023

A 1987 treaty to ban ozone-destroying gases helped delay the first Arctic summer with no ice, which is now projected to happen by 2037 at the earliest

Ozone

How smoke from Australia’s megafires ate away at the ozone

New Scientist

MARCH 8, 2023

Wildfire smoke can change the chemistry of the stratosphere, resulting in chlorine molecules that deplete the ozone layer

Ozone

Ozone exposure may be linked to depression in adolescents, study finds

Environmental News Bits

APRIL 8, 2022

Exposure to ozone from air pollution may be connected to a rise in depression among adolescents, a new study has found. The study, published in the journal Developmental Psychology on Monday, is the first to link ozone levels to the development of depression in adolescents over time. Read the full story at The Hill.

Ozone

Ozone Air Pollution

Potent Greenhouse Gases and Ozone Depleting Chemicals Called CFCs Are Back on the Rise Following an International Ban, a New Study Finds

Inside Climate News

APRIL 3, 2023

By Phil McKenna Emissions of a small group of chlorofluorocarbons (CFCs), man-made chemicals that destroy Earth’s protective ozone layer and fuel global warming, are back on the rise after their production was all but banned more than a decade ago, a new study concludes.

Ozone

Ozone Carbon Dioxide Greenhouse Climate Change

CMIP6: Not-so-sudden stratospheric cooling

Real Climate

MAY 21, 2023

The dominant factors are changes in CO2 (a cooling), ozone depletion (a cooling), warming from big volcanoes, and oscillations related to the solar cycle. That means the greenhouse substances are basically just CO2 and ozone, and they absorb in quite different parts of the spectrum. But why is the stratosphere increasingly chill?

Cooling

Cooling Ozone Atmosphere Radiation

The ozone hole over the South Pole is now bigger than Antarctica

New Scientist

SEPTEMBER 15, 2021

Each year between August and October, the ozone over the South Pole is depleted – this year the hole is larger than 75 per cent of the holes that had formed by this point in the season since 1979

Ozone

Ozone layer treaty will slow climate change by protecting plants

New Scientist

AUGUST 18, 2021

The international treaty to protect the ozone layer has had the inadvertent benefit of protecting plants and avoiding up to 1°C of future climate change this century, almost as much as the world has warmed to date.

Ozone

Ozone Climate Change

Oceans may start emitting ozone-depleting CFCs

Successful Green

MARCH 17, 2021

The world’s oceans are a vast repository... The post Oceans may start emitting ozone-depleting CFCs appeared first on successful GREEN. As atmospheric concentrations of CFC-11 drop, the global ocean should become a source of the chemical by the middle of next century, a new MIT study predicts.

Ozone

Ozone Ocean Atmosphere Climate Change

Ozone pollution causes $63 billion damage per year to East Asian crops

New Scientist

JANUARY 17, 2022

Rising levels of ground-level ozone in China and nearby countries are having a big effect on the yields of staple crops such as wheat, rice and maize

Ozone

Ozone Ground-Level Ozone

Landmark Ozone Treaty Could Prevent More Than 400 Million Cases of Cancer

Scientific American

OCTOBER 9, 2021

The Montreal Protocol has helped heal the ozone layer that blocks harmful ultraviolet rays. -- Read more on ScientificAmerican.com.

Ozone

DC Circuit dismisses utility-backed challenge to EPA cross-state ozone rule

Environmental News Bits

MARCH 6, 2023

A federal appeals court on Friday dismissed a lawsuit brought by a utility-supported organization that sought to overturn the Environmental Protection Agency’s revised 2021 Cross-State Air Pollution Update Rule for ozone.

Ozone

Ozone Air Pollution Environmental Protection 2021

Improving EPA’s Latest Ozone Transport Rule

Acoel

JUNE 29, 2022

The agency’s air quality modeling indicates that most areas would receive an ozone reduction of less than 0.1 These air quality impacts are minimal compared with the major ozone reductions resulting from the 1998 SIP Call, which resulted in more than 80,000 megawatts of coal capacity being retrofitted with SCRs. ppb by 2025.

Ozone

Ozone Clean Air Act 2026 Fossil Fuels

Ozone layer recovery is on track, helping avoid global warming by 0.5°C

Environmental News Bits

JANUARY 20, 2023

The ozone layer is on track to recover within four decades, with the global phaseout of ozone-depleting chemicals already benefitting efforts to mitigate climate change. Read the full story from the UN Environment Programme and the World Meteorological Association.

Ozone

Ozone Climate Change

Lower-income ZIP code residents feel worse effects of extreme heat, ozone pollution: study

Environmental News Bits

JUNE 17, 2021

The combined health effects of ozone pollution and extreme heat disproportionately hurt poorer areas, according to a new study analyzing hospitalizations by ZIP code in California. Read the full story at Smart Cities Dive.

Ozone

What Happens When the EPA Technical Staff Disagrees with the Clean Air Science Advisory Committee?

Law and Environment

JUNE 16, 2023

Last week, the EPA Clean Air Science Advisory Committee provided EPA its review of EPA’s Policy Assessment for the Reconsideration of the National Ambient Air Quality Standard for ozone. Instead, CASAC recommends a significantly lower ozone NAAQS of 55-60 ppb.

Ozone

Ozone Law Regulations

Cars, Smog, and EPA

Legal Planet

AUGUST 24, 2023

NOx plays a role in forming ground level ozone and final particulates (PM2.5), both of which are human health hazards. In 1998, however, the Clinton Administration brokered a deal between the car companies and Northeastern states who complained that ozone was getting blown into their states from upwind states. gpm NOx standard.

Pollution Control

Pollution Control Clean Air Act Ground-Level Ozone Ozone

State Air Regulations Can Go Above and Beyond National Standards

Legal Planet

AUGUST 22, 2023

States and local air quality regulators have the legal authority to set particulate matter (PM), ozone, and nitrogen oxides (NOx) emissions standards and adopt regulations for these pollutants when they are already in attainment of the national ambient air quality standards ( NAAQS ) set by the U.S.

Regulations

Regulations Air Pollution Ozone Clean Air Act

Climate Change Threatens Already Poor Air Quality in California’s Central Valley

Union of Concerned Scientists

JULY 26, 2022

Bakersfield, Fresno, and Visalia are consistently ranked as cities with the worst particulate and ozone pollution , according to the American Lung Association. and ozone concentrations highlighting air quality issues in the Central Valley. Annual average PM2.5 Graphics from CalEnviroScreen 4.0

Climate Change

Climate Change Air Pollution Ozone Particle Pollution

Montreal Protocol Averted an Additional 2.5 Degrees C of Warming, Study Says

Yale E360

AUGUST 20, 2021

The Montreal Protocol, which phased out the use of ozone-depleting chemicals, not only saved the ozone layer, but also staved off an additional 2.5 degrees C (4.5 degrees F) of warming by the end of this century, according to a new study. Read more on E360 ?.

Ozone

High-flying microplastics could pose a threat to the ozone layer

New Scientist

SEPTEMBER 15, 2023

Experiments suggest microplastic fragments with irregular shapes settle more slowly than spherical ones and may reach the stratosphere

Ozone

News Flash! International Cooperation on the Environment Remains Possible

Law and Environment

JANUARY 9, 2023

Today, the New York Times reported that a recent assessment shows that the world is on track to reach pre-1980 levels of upper atmosphere ozone by roughly 2040. Especially when it’s good news about effective international cooperation on environmental protection issues. .

Ozone

Ozone Environmental Protection Atmosphere 2018

Countries Agree on a Nearly Billion-Dollar HFC Phasedown Fund

NRDC

NOVEMBER 8, 2023

Countries commit to nearly 1 billion dollars under the Montreal Protocol for programs to cut ozone-depleting and climate-warming substances in developing countries.

Ozone

EPA's GreenChill Program Recognizes Environmentally Friendly Refrigerant Management In Supermarket Industry, Including Weis Markets, The Giant Company, ALDI In PA

PA Environment Daily

OCTOBER 4, 2023

Environmental Protection Agency’s GreenChill Program recognized 12 food retail companies and one manufacturer of advanced refrigeration systems for their exceptional achievements to reduce the use of ozone-depleting substances and/or climate-damaging refrigerants.

Ozone

Ozone Carbon Dioxide Environmental Protection Greenhouse

Air Quality as Environmental Justice

Legal Planet

FEBRUARY 24, 2022

The SIPS cover all sources of pollution – everything from smoky diesel trucks to coal-fired power plants to use of ozone-causing chemicals. The process can be slow, but the advantage is that it casts a wide net.

Air Pollution

Air Pollution Ozone Waste Regulations

The ozone layer was destroyed during Earth's biggest mass extinction

New Scientist

JANUARY 6, 2023

Fossils show plants were producing higher levels of sunscreen chemicals to protect against higher ultraviolet light levels at the end of the Permian period

Ozone

A Mysterious Rise in Banned Chemicals Is Warming the Planet

Scientific American

APRIL 4, 2023

A new study documents the mysterious presence of five banned chlorofluorocarbons, chemicals that not only deplete the ozone layer but also contribute to global warming

Ozone

Ozone Climate Change

Ozone-destroying CFC chemicals are on the rise again despite ban

New Scientist

APRIL 3, 2023

The production of CFCs was banned globally in 2010, but researchers have detected rising levels of five CFC chemicals from unknown sources

Ozone

Ozone 2010

Ozone Pollution: An Insidious and Growing Threat to Biodiversity

Evolving Air Quality Standards

Trending Sources

The Ozone Hole Showed Humans Could Damage Earth and That We Could Heal It

Smoke from Australian Wildfires Thinned Ozone Layer, Study Finds

Ozone Treaty Delayed Arctic Melting by 15 Years

Deja Vu One More Time? What Will Happen If EPA Ignores CASAC Regarding the Ozone NAAQS?

The hole in the ozone layer has opened unusually early this year

EPA Will Reconsider the Ozone NAAQS — What Is An Adequate Margin of Safety, Anyway?

New Climate Research From a Year-Long Arctic Expedition Raises an Ozone Alarm in the High North

What Exactly is Ozone? The Good, the Bad & the Ugly

Chemicals used to make decaf coffee are contributing to ozone damage

Recent Megafire Smoke Columns Have Reached the Stratosphere, Threatening Earth’s Ozone Shield

The Upper Atmosphere Is Cooling, Prompting New Climate Concerns

Australia's Massive Wildfires Shredded the Ozone Layer--Now Scientists Know Why

The ozone layer was damaged by Australia’s Black Summer megafires

The EJ Movement Wants to Tighten the NAAQS. Will It Happen?

One of the longest-lived ozone holes on record is about to close

Ozone layer treaty pushed back ice-free Arctic summers up to 15 years

How smoke from Australia’s megafires ate away at the ozone

Ozone exposure may be linked to depression in adolescents, study finds

Potent Greenhouse Gases and Ozone Depleting Chemicals Called CFCs Are Back on the Rise Following an International Ban, a New Study Finds

CMIP6: Not-so-sudden stratospheric cooling

The ozone hole over the South Pole is now bigger than Antarctica

Ozone layer treaty will slow climate change by protecting plants

Oceans may start emitting ozone-depleting CFCs

Ozone pollution causes $63 billion damage per year to East Asian crops

Landmark Ozone Treaty Could Prevent More Than 400 Million Cases of Cancer

DC Circuit dismisses utility-backed challenge to EPA cross-state ozone rule

Improving EPA’s Latest Ozone Transport Rule

Ozone layer recovery is on track, helping avoid global warming by 0.5°C

Lower-income ZIP code residents feel worse effects of extreme heat, ozone pollution: study

What Happens When the EPA Technical Staff Disagrees with the Clean Air Science Advisory Committee?

Cars, Smog, and EPA

State Air Regulations Can Go Above and Beyond National Standards

Climate Change Threatens Already Poor Air Quality in California’s Central Valley

Montreal Protocol Averted an Additional 2.5 Degrees C of Warming, Study Says

High-flying microplastics could pose a threat to the ozone layer

News Flash! International Cooperation on the Environment Remains Possible

Countries Agree on a Nearly Billion-Dollar HFC Phasedown Fund

EPA's GreenChill Program Recognizes Environmentally Friendly Refrigerant Management In Supermarket Industry, Including Weis Markets, The Giant Company, ALDI In PA

Air Quality as Environmental Justice

The ozone layer was destroyed during Earth's biggest mass extinction

A Mysterious Rise in Banned Chemicals Is Warming the Planet

Ozone-destroying CFC chemicals are on the rise again despite ban

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