Croatian researchers have developed new indicators that can be used to analyse photochemical pollution and smog caused by ozone. The indicators are based on simple mathematical formulae and could make it easier for those who monitor pollution levels to make meaningful comparisons between different sites.

Although there have been significant advances in the understanding and monitoring of atmospheric processes in the last decade, a recent study suggests that uncertainties in their assessment continue to grow and more complex studies are required to understand the precise relationship between atmospheric chemicals, such as air pollutants, and climate change.

A new study has analysed trends in ozone levels in the European troposphere from 1996 to 2005. It indicated that average levels have been increasing despite reductions in pollutants that influence ozone formation. However, it also identified year-by-year variations, caused by climate and weather events, and suggested they could be masking the impact of emission reductions on long-term ozone trends.

Using hydrogen as an energy carrier can help reduce air pollution and greenhouse gas (GHG) emissions associated with fossil fuels, according to recent research. However, if used on a large-scale, it is important that hydrogen does not leak significantly into the atmosphere as it might have some negative environmental effects, such as increasing the lifetime of methane, increasing climate effects and causing some depletion of the ozone layer.

Planting trees in urban areas has been recognised as a cost-effective means of reducing air pollution for several major cities worldwide. In a new study, the impact of tree species diversity on levels of ozone pollution in Rome was assessed. The results suggest that different species of tree complement each other in providing this important ecosystem service.

Levels of air pollution significantly increase on the island of Svalbard in the Norwegian Arctic when tourist cruise ships are present, according to a recent study. With shipping levels rising in the region, the researchers recommend that stricter emissions regulations are introduced in order to limit the impact of pollution on the Arctic environment.

Four ozone-depleting gases, previously undetected in the atmosphere, have been found by new research. The work suggests that more than 74 000 tonnes of these human-made substances have been released since 1978, and that two are continuing to accumulate in the atmosphere. However, it is not yet known where they come from.

EU air pollution legislation to reduce sulphur dioxide (SO₂) has effectively reduced rates of premature deaths, new research suggests. Moreover, additional reductions would lead to even further public health benefits, the researchers say.

European emissions of sulphur and nitrogen pollution have fallen greatly in recent decades, a new report shows. However, even at present levels they harm sensitive ecosystems, and will continue do so for some years to come.

Citizen scientists have helped to map pollution across the Netherlands using their smartphones. Their results, produced by thousands of volunteers, are presented in a study which shows how a combination of mass participation and smartphone technology can be a powerful approach to environmental monitoring.

Nitrous oxide (N₂O) is a potent greenhouse gas and atmospheric pollutant. A new study proposes tackling both problems by removing N₂O from the atmosphere using a combination of two innovative technologies — photocatalytic breakdown of the N₂O to nitrogen and oxygen, and this within a solar chimney power plant that generates renewable electricity. Although some way off from commercial development, the researchers say this approach is feasible, and they outline how these two technologies can be integrated to reduce the climate impact and polluting effects of N₂O emissions.

It is important to understand the extent to which atmospheric (air) pollution damages plants (i.e. its phytotoxicity) as well as the wider ecosystem (i.e. its ecotoxicity). For this reason, researchers have adapted the Organisation for Economic Cooperation and Development (OECD) Vegetative Vigour Test1 for the assessment of the ecotoxicity of samples of aerosol (suspensions of fine solid particles or liquid droplets in air). Typically, the test involves spraying the trial liquid on above-ground portions of the plant, such as the leaves. The adapted protocol involves extracting water-soluble aerosol compounds from aerosol samples to spray on the plant. The new protocol is sensitive enough to determine phytotoxicity and establish a clear cause–effect relationship, and as such has the potential to serve as a useful tool for the assessment of the effects of air pollution on environmental and human health.

Asia Pacific, the Middle East and Africa (AMEA) have always been at the heart of world trade. Vibrant and dynamic, AMEA is a region with huge potential; its markets are driving growth around the world and are seen as important prospects for investment.

Asia Pacific, the Middle East and Africa (AMEA) have always been at the heart of world trade. Vibrant and dynamic, AMEA is a region with huge potential.

March 30, 2020: Effective immediately, physical deliveries should be dropped off to the lobby of the Government Center in the secure drop box labeled Department of Finance and Budget, Division of Procurement.

Grey has made a grown up acquisition, Myke is having a laundry situation, and they both discuss working effectively in different locations.

An ongoing investigation by Australian authorities into the sexual abuse of children in the Philippines, including suspected live distance abuse committed by an Australian citizen, has resulted in the rescue of three children and the arrest of one woman in the Philippines.

Named by the Guinness Book of Records as “the world’s greatest living explorer”, Sir Ranulph Fiennes is to embark on a live tour across the UK, coming to the Alban Arena on Monday, March 23.

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Here in St Albans Thai Square can be found in the historical quarter of the city on the corner of George Street. The entrance of Thai Square is flanked by two stone elephants with their trunks fortuitously elevated. We open the door to a richly decorated lobby.

President’s Cup Semi-Final

Watford’s survival hopes have suffered another blow after they threw away a two-goal lead to lose 3-2 to ten-man Everton at the death at Vicarage Road.

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The Central North Pacific hurricane season runs from June 1st through November 30th.

Full contract awards are expected shortly for key Phase 1 workstreams.

Tyson is known for his somewhat irreverent tweets about space and science.

But apparently, time travelers shy away from promoting their whereabouts on social media.

Nobel Prize-winning scientist Tim Hunt talked about his 'trouble with girls' this week, and women in the scientific community responded perfectly.

Find your animal soul mate and download its mating call from the Center for Biological Diversity's Love Calls of the Wild ringtone collection.

A fun, not-so-serious, but still-helpful chart that helps you select a vino based on what you're doing, not what you're eating.

These adorable pictures are sure to warm even the coldest heart.

Photographing the historic Venus transit of the sun is special enough on its own, but one space photographer managed to get NASA's Hubble Space Telescope in the

Those struggling academically saw 14% increase in test scores.

All of the oat-based cereals tested by EWG had traces of what the World Health Organization has named a "probable carcinogen."

Although syphilis was nearly eliminated from the U.S. about a decade ago, the sexually transmitted disease has resurged in recent years.

A brightly-colored fungus found only on Hawaiian lava flows might be the most powerful aphrodisiac ever discovered.

A compilation of some of the most disturbing factoids about BP and the federal government's response to the catastrophe.

Louisiana Gov. Jindal puts up Flickr album of gruesome oil creeping into Louisiana wetlands.

The cartoonist responsible for beloved webcomic xkcd is also an ace infographic designer. His "Money Chart" is the definitive portrait of a cash-strapped, cash-

Thanks to our oil addiction, such a world would include rolling blackouts, minimal transportation, dwindling food supplies and possibly war.

America does not grow enough fruits and vegetables to satisfy USDA recommendations for all citizens. This infograhic makes the argument easy to understand.

Make sure your new baby's room is safe and healthy for the whole family with these quick and easy tips.

Is the idea behind Swipe & Feed smartphone/baby bottle combo genius or ridiculous?

More than 100 world leaders and tens of thousands of protesters will descend on Rio de Janeiro next week for the Rio+20 summit in hopes of overcoming years of d

As world leaders fly into Rio de Janeiro for Rio+20, thousands of people from indigenous tribes, environmental groups, unions and religious organizations gather

Sue Flood's new book on emperor penguins, 'Emperor: The Perfect Penguin,' is the culmination of 9 years of work.