News for '-pm2'

7 Nations With The Lowest Air Pollution

7 Nations With The Lowest Air Pollution

Rediff.com6 days ago

These countries demonstrate how clean energy adoption, strong environmental policies and favourable geographical conditions can keep air pollution impressively low. According to the IQAir World Air Quality Report (2024), they consistently maintain annual average PM2.5 levels at or below the World Health Organization's stringent guideline of 5 g/m.

How This IITian Is Solving India's Clean Air Crisis

How This IITian Is Solving India's Clean Air Crisis

Rediff.com12 Feb 2026

Ravi Kaushik has sold 70,000 units of air filters through his start-up Airth and aims to sell 10 lakh units in the next five years.

The World's Most Polluted Place Is...

The World's Most Polluted Place Is...

Rediff.com9 Feb 2026

Residential areas now exist cheek by jowl with smokestacks, while convoys of heavy trucks rumble through narrow roads day and night, throwing up clouds of dust.

Not Delhi, but this Indian city tops pollution chart: Report

Not Delhi, but this Indian city tops pollution chart: Report

Rediff.com6 Dec 2025

Noida, Bahadurgarh, Delhi, Hapur, Greater Noida, Baghpat, Sonipat, Meerut and Rohtak joined Ghaziabad among the 10 most polluted cities, the report by think tank Centre for Research on Energy and Clean Air said.

Delhi air turns lethal as AQI peaks at 498, skyline lost in haze

Delhi air turns lethal as AQI peaks at 498, skyline lost in haze

Rediff.com15 Dec 2025

Delhi choked under a thick blanket of smog on Monday, with the Air Quality Index (AQI) settling at 498, which falls in the higher spectrum of 'severe' category.

6 Wearable Air Purifier For Daily Use

6 Wearable Air Purifier For Daily Use

Rediff.com18 Dec 2025

As we go deeper into winter and air quality grows increasingly troubling, people are now relying on N95 coverings to shield their lungs from toxins and irritants. A sleek, wearable air purifier is a smart alternative.

'India's biggest health crisis since Covid'

'India's biggest health crisis since Covid'

Rediff.com26 Dec 2025

Experts warn that air pollution in India is a major public health crisis, leading to a surge in undiagnosed airway diseases and cardiovascular issues. They urge for urgent action, early detection, and treatment.

Delhi AQI hits 461, second-worst Dec day; Rohini, Wazirpur at 500

Delhi AQI hits 461, second-worst Dec day; Rohini, Wazirpur at 500

Rediff.com14 Dec 2025

Delhi's air quality deteriorated to the 'severe' category, prompting the implementation of Stage-IV GRAP measures and hybrid classes for schools.

Over 17 lakh died in India due to air pollution in 2022: Report

Over 17 lakh died in India due to air pollution in 2022: Report

Rediff.com30 Oct 2025

A Lancet report reveals a significant increase in deaths attributable to PM2.5 pollution in India, with fossil fuels being a major contributing factor. The report highlights the economic and health consequences of air pollution and the urgent need for a transition to cleaner energy sources.

And the most polluted city in the world is....

And the most polluted city in the world is....

Rediff.com28 Oct 2025

Lahore, Pakistan, has once again been ranked as the world's most polluted city, with hazardous smog levels far exceeding WHO guidelines. The city is battling a toxic mix of vehicular emissions, industrial pollution, and crop residue burning.

Delhi orders 50% WFH for govt, private offices as air quality worsens

Delhi orders 50% WFH for govt, private offices as air quality worsens

Rediff.com24 Nov 2025

Delhi government mandates 50% work from home for offices and private establishments under GRAP stage three due to severe air pollution. Essential services are exempted.

Day after Diwali, Delhi records worst air quality since 2021

Day after Diwali, Delhi records worst air quality since 2021

Rediff.com21 Oct 2025

Delhi residents woke up on Tuesday to heavy grey haze darkening the city skies, reduced visibility and the air quality in the 'red zone' after many celebrated Diwali last night by bursting firecrackers beyond the two-hour limit set by the Supreme Court.

Delhi govt puts cloud-seeding trial on hold

Delhi govt puts cloud-seeding trial on hold

Rediff.com29 Oct 2025

A cloud-seeding trial scheduled for Wednesday in Delhi has been put on hold due to insufficient moisture in the clouds, the Indian Institute of Technology-Kanpur said in a statement.

Burning eyes, headaches: How Delhi-NCR is reacting to toxic air

Burning eyes, headaches: How Delhi-NCR is reacting to toxic air

Rediff.com25 Oct 2025

A recent survey reveals that a significant number of households in Delhi-NCR are experiencing health problems due to the worsening air quality, with residents reporting symptoms like sore throat, cough, and burning eyes.

IIT-Kanpur director explains why Delhi's cloud seeding failed

IIT-Kanpur director explains why Delhi's cloud seeding failed

Rediff.com29 Oct 2025

IIT-Kanpur Director Manindra Agrawal discusses the cloud seeding trial in Delhi, its costs, and the information gained despite the lack of rain.

Delhi chokes under post-Diwali haze as AAP, BJP trade blame

Delhi chokes under post-Diwali haze as AAP, BJP trade blame

Rediff.com22 Oct 2025

Delhi's air quality deteriorates to 'very poor' levels, sparking a blame game between AAP and BJP over the causes and responsibility for the pollution.

SEE: Delhi's cloud seeding experiments bring no rainfall

SEE: Delhi's cloud seeding experiments bring no rainfall

Rediff.com29 Oct 2025

The first cloud-seeding trial has been conducted in parts of Delhi, including Burari and Karol Bagh areas, aimed at inducing artificial rain to tackle air pollution.

Maruti Victoris: All-Rounder SUV With An Edge

Maruti Victoris: All-Rounder SUV With An Edge

Rediff.com22 Sep 2025

In terms of safety, the Victoris has scored 5 stars in both GNCAP and BNCAP tests and that's a first for Maruti, observes Somnath Chatterjee.

'Alcohol Causes 7 Kinds Of Cancer'

'Alcohol Causes 7 Kinds Of Cancer'

Rediff.com11 Sep 2025

'After tobacco, the next most common cause for oral cancer is alcohol.'

Worrying! 13 of world's top 20 most polluted cities in India

Worrying! 13 of world's top 20 most polluted cities in India

Rediff.com11 Mar 2025

Four cities in neighbouring Pakistan and one in China are among the world's top 20 polluted cities.

What is Type 5 Diabetes?

What is Type 5 Diabetes?

Rediff.com16 May 2025

'Everyone with a low BMI will not get Type 5 diabetes.'

Delhiites breathe easy for 2nd day as AQI improves; curbs relaxed

Delhiites breathe easy for 2nd day as AQI improves; curbs relaxed

Rediff.com5 Dec 2024

Delhi's air quality improved for the second consecutive day on Thursday, with the Air Quality Index (AQI) recorded in the "moderate" category at 165. This marks a significant improvement from the "poor" category recorded on Tuesday. Several restrictions imposed under Stage 4 of the Graded Response Action Plan (GRAP) were lifted, but some restrictions under Stage 2 remain in place. The Decision Support System (DSS) has not been updated since Friday, with technical difficulties hindering the update of data for the last six days.

Delhi air quality plummets to alarming levels despite curbs

Delhi air quality plummets to alarming levels despite curbs

Rediff.com17 Dec 2024

Delhi's air quality plummeted to alarming levels on Tuesday after 24 days, with many areas witnessing a significant spike in pollution despite the strictest measures, including a ban on construction activities and the entry of trucks into the city, coming into force.

Delhi's air quality worst in country, 'severe' for first time this season

Delhi's air quality worst in country, 'severe' for first time this season

Rediff.com14 Nov 2024

The city's 24-hour Air Quality Index, recorded at 4 pm every day, stood at 418, up from 334 the previous day, and it may trigger stringent restrictions under the third stage of the graded response action plan to mitigate hazardous conditions.

Delhi's air quality worsens as people defy Diwali firecracker ban

Delhi's air quality worsens as people defy Diwali firecracker ban

Rediff.com1 Nov 2024

The city's air quality dropped to the "very poor" category, with an Air Quality Index of 330 at 10 pm.

All you need to know about the disease that killed Zakir Hussain

All you need to know about the disease that killed Zakir Hussain

Rediff.com16 Dec 2024

Idiopathic Pulmonary Fibrosis, the condition that led to the death of tabla maestro Zakir Hussain, is an extremely debilitating disease -- a virtual death sentence.

Delhi's air quality worsens, over Rs 5.85 cr fine imposed

Delhi's air quality worsens, over Rs 5.85 cr fine imposed

Rediff.com16 Nov 2024

The city's 24-hour Air Quality Index (AQI), recorded at 4 pm daily, stood at 417, making it the worst in the country. On Friday, the AQI level was 396.

Pak blames India for worsening smog in Lahore

Pak blames India for worsening smog in Lahore

Rediff.com4 Nov 2024

Toxic grey smog has sickened tens of thousands of people, mainly children and elderly people, since last month when the air quality started worsening in Lahore, the city bordering India.

India host NZ, Bangladesh in packed home season

India host NZ, Bangladesh in packed home season

Rediff.com20 Jun 2024

The arrival of the New Year will see an exciting white-ball showdown with England visiting India for five T20Is and three ODIs.

Experts explain why Delhi cracker ban went up in smoke

Experts explain why Delhi cracker ban went up in smoke

Rediff.com1 Nov 2024

Gaps in enforcement, limited monitoring, and easy access to firecrackers from the NCR region where restrictions were slack were largely responsible for the widespread flouting of the cracker ban in Delhi on Diwali, experts have opined.

India home to 18 of 20 cities with most severe rise in PM2.5 pollution: Report

India home to 18 of 20 cities with most severe rise in PM2.5 pollution: Report

Rediff.com17 Aug 2022

The report Air Quality and Health in Cities combined ground-based air quality data with satellites and models to produce air quality estimates for cities around the world.

Delhi world's most polluted capital city again: Report

Delhi world's most polluted capital city again: Report

Rediff.com19 Mar 2024

In 2022, India was ranked as the eighth most polluted country with an average PM2.5 concentration of 53.3 micrograms per cubic metre.

Dirty Air, 2nd Largest Global Killer

Dirty Air, 2nd Largest Global Killer

Rediff.com20 Jun 2024

Over eight million deaths in 2021 were attributed to air pollution, affecting both children and adults alike.

Delhiites to lose 11.9 years of their lives to pollution

Delhiites to lose 11.9 years of their lives to pollution

Rediff.com29 Aug 2023

The study said fine particulate air pollution (PM2.5) shortens an average Indian's life expectancy by 5.3 years, relative to what it would be if the 5 g/m3 pollution limit set by (WHO) was met.

Guess which was India's most polluted city in 2023? Hint: It's not Delhi

Guess which was India's most polluted city in 2023? Hint: It's not Delhi

Rediff.com10 Jan 2024

Byrnihat in Meghalaya topped the list of most polluted cities in India in 2023, closely followed by Begusarai in Bihar and Greater Noida in Uttar Pradesh, according to a report released on Wednesday.

Delhi chokes on thick smog as air quality remains severe

Delhi chokes on thick smog as air quality remains severe

Rediff.com8 Nov 2023

Air quality in Delhi and its suburbs dropped to the severe category again on Wednesday morning, with smoke from post-harvest paddy straw burning in neighbouring states accounting for one-third of the air pollution in the national capital.

Delhi most polluted city in India in 2022: Report

Delhi most polluted city in India in 2022: Report

Rediff.com10 Jan 2023

PM2.5 pollution in the national capital has reduced by over 7 per cent in four years, from 108 micrograms per cubic metre in 2019 to 99.71 micrograms per cubic metre in 2022, the report by NCAP Tracker said.

Delhi govt defers odd-even scheme pending SC review

Delhi govt defers odd-even scheme pending SC review

Rediff.com8 Nov 2023

The Delhi government on Wednesday said the odd-even car rationing scheme will be implemented in the national capital after the Supreme Court reviews its effectiveness and issues an order.

Toxic air: Delhi reschedules winter break of schools

Toxic air: Delhi reschedules winter break of schools

Rediff.com8 Nov 2023

In view of air pollution in the national capital, the December winter break of all schools has been rescheduled and it will be now from November 9 to November 18, a circular of the Delhi Directorate of Education stated on Wednesday.

India had 12 of 15 most polluted cities in Central and South Asia in 2022

India had 12 of 15 most polluted cities in Central and South Asia in 2022

Rediff.com15 Mar 2023

According to the report by Swiss firm IQAir released on Tuesday, India's annual average PM2.5 level in 2022 was 53.3 g/m3, slightly lower than the 2021 average of 58.1.