Significant ozone built up in Delhi poses health risk: CSE

A significant ozone build up has been witnessed this summer in several areas of the national capital, including the one where Delhi Chief Minister Arvind Kejriwal resides, increasing the public health risk, a green body warned Thursday.

Dangerous levels of toxins in Delhi's air as heat and dust intensify
Dangerous levels of toxins in Delhi's air as heat and dust intensify

Of late, experts have raised concerns about poor air quality in the national capital. And now, prevailing high temperatures in Delhi have caused a steep rise in ozone levels.

How air pollution, climate change make your allergies worse revealed

A new has provided a deeper insight into air pollution and climate change that are involved in the increasing prevalence of allergies worldwide.

Household 'green' products pose health hazards

The so-called household "green" products, including air fresheners, cleaning products, laundry supplies and personal care products, contain lot of health hazards, finds a new study.

US proposes stricter ozone limits

The US Environmental Protection Agency announced plans Wednesday to strengthen emission regulations for ozone, a smog-causing pollutant blamed for respiratory ailments affecting millions of Americans.

NASA's MAVEN gets unprecedented look at Mars' upper atmosphere
NASA's MAVEN gets unprecedented look at Mars' upper atmosphere

NASA's Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft has provided scientists its first look at Martian upper atmosphere, it has been reported.

Here`s how NASA is going to search for alien life in future
Here`s how NASA is going to search for alien life in future

NASA has said that astronomers searching the atmospheres of alien worlds for gases that might be produced by life can't rely on the detection of just one type, such as oxygen, ozone, or methane, because in some cases these gases can be produced non-biologically.

Fragile ozone layer shows first sign of recovery: UN

The ozone layer that shields life from cancer-causing solar rays is showing its first sign of recovery after years of dangerous depletion, a UN study said on Wednesday, in a rare piece of good news on the environment.

Ozone layer on track to recovery: UN report
Ozone layer on track to recovery: UN report

The depleting ozone layer is well on track to recovery in the next few decades because of "concerted international action", according to an assessment report by UN Enviornment Programme and World Meterological Organisation.

Four new ozone-depleting gases found in atmosphere

A new study has found four new man-made gases in the atmosphere which are destroying the ozone layer.

Ozone chemicals ban may have led to global warming `pause`

A new study has suggested that ban on ozone depleting chemicals may have impacted the global temperature rise.

Lethal gamma-ray may soon hit Earth

A lethal gamma-ray burst from a star about 8000 light years away could hit earth and possibly wipe out a quarter of our atmospheric ozone, astronomers have revealed.

Gas that triggers ozone destruction found

Scientists showed that the reaction of iodide with ozone leads to the formation of both molecular iodine and hypoiodous acid.

Ozone in air makes for poorer workers

Ozone, even at low levels, can affect worker performance significantly, says the first ever research on the direct impact of pollution on individual productivity.

Climate change ups risk of ozone damage

The increased risk of ozone damage to vegetation is mainly due to rising ozone concentrations and higher temperatures in the future.

More than 1100 cylinders of ozone depleting gas seized

Over 1,100 cylinders
containing 15,500 kg of a very strong ozone depleting gas
which were brought into the country on the sly have been
seized by the Directorate of Revenue Intelligence.

Invasive kudzu contributes to surface ozone pollution

Kudzu, an invasive vine that is spreading across the southeastern United States and northward, is a major factor in the large-scale rise of the pollutant surface ozone, says a study.

`India phased out ozone depleting substances ahead of target`

India on Wednesday attributed the
success of the Montreal Protocol on Ozone depleting substance
to the principle of "common but differentiated responsibility
and respective challenges" being agreed by the developed

Laughing gas largest threat to Ozone layer: Study

Laughing gas or Nitrous Oxide (N2O) is the most abundant ozone-depleting substance in the 21st century as the emissions of CFC, another green house gas, has come down, a new study suggests.