Nitrogen dioxide photograph

Nitrogen Dioxide

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Molar mass46. 0055 g/mol
FormulaNO2
Density1. 45 g/cm³
Boiling point21 °C
ChemSpider ID2297499
Soluble in Water
Date of Reg.
Date of Upd.
ID781350
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About Nitrogen Dioxide


Nitrogen dioxide is the chemical compound with the formula NO ₂. It is one of several nitrogen oxides. NO ₂ is an intermediate in the industrial synthesis of nitric acid, millions of tons of which are produced each year which is used primarily in the production of fertilizers.

London air quality improved by Ulez and Lez - report

London air quality improved by Ulez and Lez - report
Nov 2,2023 3:11 am

... Nitrogen Dioxide levels had also fallen by 18...

Is the UK doing enough to monitor air pollution?

Is the UK doing enough to monitor air pollution?
Oct 15,2023 7:31 pm

... The new inquest confirmed Rosamund s suspicions, finding that Nitrogen Dioxide (NO2) emissions had exceeded both EU and UK levels...

London Ulez expansion: Do clean-air zones reduce pollution?

London Ulez expansion: Do clean-air zones reduce pollution?
Aug 26,2023 9:10 pm

... High levels of air pollutants - for example, Nitrogen Dioxide (NO2) and tiny particles known as fine particulate matter (PM2...

London mayor Sadiq hails Ulez expansion ruling by High Court

London mayor Sadiq hails Ulez expansion ruling by High Court
Jul 28,2023 10:11 am

... Air pollutants, such as Nitrogen Dioxide, can cause and worsen respiratory problems like asthma, and can affect those with heart conditions, according to multiple scientific studies...

Ulez: What is it and why is its expansion controversial?

Ulez: What is it and why is its expansion controversial?
Jul 21,2023 9:31 am

... Petrol and diesel vehicles emit the CO2 that warms our planet, but this scheme is principally aimed not at fighting climate change but reducing levels of two key air pollutants - Nitrogen Dioxide (NOx) and fine particulate matter (PM2...

Can houseplants purify the air in your home?

Can houseplants purify the air in your home?
Jul 20,2023 9:51 pm

... For instance, road traffic produces Nitrogen Dioxide, while moisture and structural issues in buildings can lead to mould...

Government set to miss air pollution goals - report

Government set to miss air pollution goals - report
Jun 17,2022 4:30 am

... The report raises particular concerns about levels of Nitrogen Dioxide, which is released into the air by road vehicles burning fuel...

Bristol mayor flies nine hours for TED climate conference

Bristol mayor flies nine hours for TED climate conference
May 28,2022 4:40 am

... " Cities are responsible for around 75% of CO2 emissions, and we re also prodigious emitters of Nitrogen Dioxide and methane...

Millions of masks distributed to students in 'gas chamber' Delhi

May 25,2022 6:45 pm

Five million masks are being distributed at schools in India's capital, Delhi, after pollution made the air so toxic officials were forced to declare a Public Health emergency.

A Supreme Court-mandated panel imposed several restrictions in The City and Two neighbouring states, as air quality deteriorated to "severe" levels.

Dangerous particulate levels in the air are about 20 times The Who maximum.

The City 's schools have also been closed until at least next Tuesday.

All construction has been halted for a week and fireworks have been banned. From Monday, The City will introduce a temporary scheme so that only cars with odd or even numbered licence plates can drive on given days, in a bid to cut traffic pollution.

Delhi's Chief Minister Arvind Kejriwal said The City had been turned into a "gas chamber".

The Masks are being handed out to students and their parents, and Mr Kejriwal has asked people to use them as much as possible.

The Levels of tiny particulate matter (known as PM2. 5) that enter deep into the lungs are 533 micrograms per cubic metre in The City . The World Health Organization (WHO) recommends that the PM2. 5 levels should not be More Than 25 micrograms per cubic metre on average in 24 hours.

How thick is the pollution?

As thick white smog blanketed The City , residents started tweeting pictures of their surroundings.

Photos of German leader Angela Merkel 's official visit showed the obscuring effect of the smog at the presidential Palace - though both leaders ignored the declared Public Health emergency and declined to wear masks.

The German and Indian leaders met at India's presidential Palace amid the smog

Some workers were being told to work from home to avoid the pollution.

One account director at Market Research firm Kantar, which employs several hundred people in The City , told Reuters staff had been told not to come in on Monday.

Many local residents are furious that The Situation remains the same year after year. Municipal workers and vulnerable groups have been given thousands of free high-grade N95 masks in recent years.

Two years ago this month, hospital patients in Gurgaon were issued masks amid similar conditions

"I didn't realise how bad it would get," one resident said. "Do we really want Our Kids to Grow Up in such an environment? No-one really cares, no-one wants to improve The Situation . "

The hashtags #DelhiAirQuality and #FightAgainstDelhiPollition are trending on Twitter.

The thick smog also raised concerns for the weekend's cricket clash between India and Bangladesh . A 2017 match in similar polluted conditions led to Sri Lankan players vomiting on The Pitch .

But Bangladesh 's coach said that despite "scratchy eyes" and sore throats among his players, The Game would go ahead.

Bangladesh head coach Russell Domingo (R) wore a mask to training, but said his players would get on with it

"No-one is dying," Russell Domingo told The Press Trust of India.

"Look, there's a bit of pollution in Bangladesh as well, so it's a not a massive shock unlike some other countries. The players have just got on with The Game and haven't complained too much about it," he said.

Why is the pollution so bad?

One of the main reasons for air quality in The City worsening every year in November and December is that farmers in the neighbouring states of Punjab and Haryana burn crop stubble to clear their fields. It's made worse by the fireworks during the Hindu festival of Diwali.

There are other reasons too, including construction dust, factory and vehicular emissions, but farm fires remain the biggest culprit.

More Than Two million farmers burn 23 million tonnes of crop residue on some 80,000 sq km of farmland in northern India every winter.

The stubble smoke is a lethal cocktail of particulate matter, carbon dioxide, Nitrogen Dioxide and sulphur dioxide.

Using satellite data, Harvard University researchers estimated that nearly half of Delhi's air pollution between 2012 and 2016 was due to stubble burning.

The Burning is so widespread that it even shows up in satellite photos from Nasa.

What are PM 2. 5 particles?

air pollution, india, pollution, new delhi, air pollution in india, asia

Source of news: bbc.com

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