Page 7 - Air Pollution Study

Today Air Pollution Update, 23 Oct: Delhi's air quality deteriorates

The minimum temperature early today was 17.2 degrees celsius, which is common for this season. Clear skies and a maximum temperature of 31 degrees was observed by IMD for Delhi today

Limit number of vehicles per family to curb air pollution, say experts

Rise in air pollution is linked to growing respiratory ailments in India, experts have said and urged the government to bring a policy limiting the number of cars per family and restricting the number of vehicles plying on roads at a time. On the sidelines of the 25th National Conference on Pulmonary Diseases (NAPCON-2023), organised by the Indian Chest Society here, Dr Rakesh K Chawla, the chairman of Pulmonology and Critical Care at Jaipur Golden Hospital, said air pollution has short-term as well as long-term effects on health. "The immediate effects are in the form of irritation in the eyes and throat. Also, there is an increase in the severity of asthma attacks," said Dr Chawla, who is also the organising chairman of NAPCON-2023. The conference was organised to discuss air pollution and diseases caused by it as well as the advancements in the field of pulmonology. Dr Chawla said the long-term effects of air pollution include respiratory diseases and lung cancer, and the worst

Indo-Gangetic plain continues to battle pollution despite NCAP: Report

The Graded Response Action Plan (GRAP) has been deployed in Delhi-NCR to combat air pollution, but the problem persists

Delhi most polluted city in past year, Mizoram sustains cleanest air: Study

Although its air quality improved marginally, Delhi remained the most polluted city in the year ending September 30, with a PM2.5 concentration of 100.1 micrograms per cubic metre, which is three times the government's safe limit, according to a new analysis. The analysis conducted by independent think tank Climate Trends and tech firm Respirer Living Sciences, that manufactures real-time IoT-based air quality monitoring devices, showed that Aizawl and Mizoram have India's cleanest air with a PM2.5 level of only 11.1 micrograms per cubic metre. Four more cities from the National Capital Region -- Faridabad (89 micrograms per cubic metre), Noida (79.1 micrograms per cubic metre), Ghaziabad (78.3 micrograms per cubic metre) and Meerut (76.9 micrograms per cubic metre) -- also feature among the top 10 most polluted cities. The report is based on the analysis of the government's PM2.5 data from October 1, 2022, to September 30, 2023, and focuses on the cities covered under the National

India, Nepal neglected in int'l funding to tackle air pollution: Report

State of Global Aiir Quality Funding 2023--has been published by the UK-based Clear Air Fund in partnership with the Climate Policy Initiative

Nanoparticle emissions from vehicles in Delhi pose health risks: Study

Delhi has been experiencing hazardous levels of nanoparticles in urban air, especially in the roadside environment, directly related to vehicular engine exhaust, raising pubic health concerns, according to a study. Nanoparticles are minuscule particles, often measuring between 10 to 1000 nanometers (nm) in diameter, making them invisible to the naked eye. These particles are more dangerous to human health due to their much smaller size compared to PM 2.5 or PM 10. Being 600 times smaller than a human hair, they can penetrate deep into our lungs, bloodstream, and even the brain. The study, published in the journal Urban Climate, was conducted on Bawana Road in northwest Delhi, connecting Delhi to Rohtak in Haryana. The monitoring location is surrounded by educational institutions, households, and commercial areas where the dominant source of pollution is vehicular, the researchers said. Other sources include biomass burning, fuel used for residential heating in winter, and firework

Exposure to air pollution linked to increased stroke risk within 5 days

Short-term exposure to air pollution may be linked to an increased risk of stroke, according to a study. The meta analysis, published recently in the the journal Neurology, defined short-term exposure as occurring within five days of the stroke. A stroke can cause lasting brain damage, long-term disability, or even death. Signs of a stroke can range from mild weakness to paralysis or numbness on one side of the face or body. "Previous research has established a connection between long-term exposure to air pollution and an increased risk of stroke," said study author Ahmad Toubasi, from the University of Jordan in Amman. "However, the correlation between short-term exposure to air pollution and stroke had been less clear. For our study, instead of looking at weeks or months of exposure, we looked at just five days and found a link between short-term exposure to air pollution and an increased risk of stroke," Toubasi said. The analysis involved a review of 110 studies that included

Crop burning emissions rose 75% from 2011-2020, finds IISER study

The study pinpointed Punjab as the highest emitter, with 27 per cent of its cultivated area burned in 2020, followed closely by Madhya Pradesh during the same period

PM10, PM2.5 levels in Delhi down 45% since 2014: Environment Minister

In a "big relief" for Delhi residents, the PM10 and PM2.5 levels have declined by an average of 45 per cent in the last 9 years, Delhi Environment Minister Gopal Rai said on Tuesday. Speaking to reporters here after a meeting with officials of the environment department, Rai said that work on a 'winter action plan' to tackle any rise in air pollution levels has begun. The levels of particulate matter (PM) 10 and 2.5 usually start increasing from the last week of October and attain a peak in November when temperature plummets, requiring measures to check the poor quality of air, he added. "There is news of big relief for Delhi's people. The PM 10 and PM 2.5, which are two important parameters of air quality and determine the level of air pollution in Delhi, have registered a downward trend since 2014 due to efforts of Delhi's people and the government," the minister said. However, the Delhi government under the leadership of Chief Minister Arvind Kejriwal is determined to bring it .

Lives at stake

Poor air quality is a public policy failure

Delhiites lose nearly 12 years of their lives to air pollution, says report

Delhi has emerged as the world's most polluted city in a new study which has also found that its residents are on track of losing 11.9 years of life if the current levels of pollution persist. The Air Quality Life Index (AQLI) released by the Energy Policy Institute at the University of Chicago also showed that all of India's 1.3 billion people live in areas where the annual average particulate pollution level exceeds the 5 g/m3 limit set by World Health Organization (WHO). It also found that 67.4 per cent of the country's population lives in areas that exceed the country's own national air quality standard of 40 g/m3. 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. The AQLI said that Delhi is the most polluted city in the world with its 18 million residents on track to lose 11.9 years of life expectancy on average relative to the WHO lim

Air pollution remains greatest global threat to human health: Study

Air pollution remains the world's greatest external risk to human health, but most of its impact on global life expectancy is concentrated in just six countries, including India, a study has found. The University of Chicago's Energy Policy Institute (EPIC) in its annual Air Quality Life Index (AQLI) report noted that as global pollution edged upwards in 2021, so did its burden on human health. The average person would add 2.3 years onto their life expectancy -- or a combined 17.8 billion life-years saved worldwide, if the world were to permanently reduce fine particulate pollution (PM2.5) to meet the World Health Organization's (WHO) guideline, the researchers said. The yet-to-be peer-reviewed data makes clear that particulate pollution remains the world's greatest external risk to human health. The impact of life expectancy is comparable to that of smoking, more than 3 times that of alcohol use and unsafe water, and over 5 times that of transport injuries like car crashes, they ...

CSIR-NEERI plans grid-based strategy to combat Delhi's air pollution

The CSIRNational Environmental Engineering Research Institute (NEERI) on Saturday said it will develop a grid-based mitigation strategy to tackle the air pollution problem in Delhi. Presenting the plan during the India Clean Air Summit (ICAS) 2023 in Bengaluru, S K Goyal, Chief Scientist and Head, CSIRNEERI, Delhi Zonal Centre, said: "We will develop a grid-based mitigation strategy, termed 'Local Area Management Plan' (LAMP), for each hotspot, for each season." The 'one size fits all' approach has rarely worked for air pollution mitigation, he said, adding that LAMP will allow policymakers to devise tailored strategies for pollution control within their jurisdiction, aligning with the National Clean Air Programme (NCAP) goals. Inspired by a tile-by-tile concept, the approach involves segmenting the entire National Capital Region into a grid of tiles, each covering two sqkm. These tiles will be closely monitored through a network of stationary and mobile sensors over two ...

Particulate air pollution growing risk for premature death globally: Study

The total number of premature deaths and years of disability from cardiovascular diseases attributable to particle air pollution rose from 2.6 million in 1990 to 3.5 million in 2019, a 31 per cent worldwide increase, according to a study. The research, published on Wednesday in Journal of the American Heart Association, analysed particulate matter (PM) pollution as a risk factor for death and disability using freely available data from 204 countries collected between 1990 and 2019 and detailed in the Global Burden of Disease (GBD) study. PM pollution consists of small particles of liquid and solids suspended in the air and inhaled into the lungs, such as vehicle emissions, smoke, dust, pollen and soot. Exposure to PM pollution was estimated using a tool from the 2019 update to the GBD study that incorporated information from satellite and ground-level monitoring, computer models of chemicals in the atmosphere and land-use data. The researchers from Tehran University of Medical ...

Air pollution could be driving antibiotic resistance: New Lancet study

Controlling air pollution could aid in reducing antibiotic resistance, which is when disease-causing microbes are able to resist the drugs designed to kill them, according to new research published in The Lancet Planetary Health journal. The association between PM2.5 air pollution and increase in antibiotic resistance has strengthened over time, with enhances in PM2.5 levels leading to larger increases in antibiotic resistance in more recent years, the analysis found using data for 116 countries from 2000 to 2018. Sources of PM2.5 include industrial processes, road transport, and domestic coal and wood burning. Previous research indicates 90 per cent of the world's population, or 7.3 billion people, are directly exposed to unsafe average annual PM2.5 levels, with 80 per cent of them living in low- and middle-income countries. PM2.5 air pollution was one of the leading factors driving antibiotic resistance, accounting for 11 per cent of changes in average antibiotic resistance level

Delhi registered 101 'good to moderate' air quality days in Jan-June 2023

Delhi registered the highest number of 'good to moderate' air quality days this year since 2016, barring COVID-19 affected 2020, the environment ministry said on Friday. "The number of 'Good to Moderate' Air Quality Days for the first half-year period (January to June) was 30 in the year 2016; 57 in 2017; 65 in 2018; 78 in 2019; 126 in 2020; 84 in 2021; 54 in 2022; and 101 in the current year 2023," the ministry said in a statement. During this period, the city also experienced the least number of days with 'poor to severe' air quality in 2023, as compared to the corresponding period of last seven years since 2016 (barring 2020 the year of lockdown due to coronavirus). "The number of 'Poor to Severe' Air Quality Days for the first half-year period (January to June) have also been progressively reducing from 147 in 2016 to 80 in 2023," it said. The ministry said favourable meteorological conditions and continual efforts at the ground level to prevent, control and abate air pollutio

Automobile emission leading cause of recorded air pollution: IITR study

The pre-monsoon report on air quality released by IITR said that leading cause of air pollution during 2022-23 was automobiles, with number of registered vehicles having risen by 6.3% since 2022

Most pollution boards financially surplus but don't spend on infra: Study

11% of their total expenditure was on infrastructure and 2% was on research, development, and studies

Poor air quality in India linked to cognitive problems in babies: Study

Poor air quality in India could be causing cognitive deficits in babies and toddlers, according to new research

Air pollution can affect your Covid-19 vaccine efficacy, says study

Air pollution can induce chronic inflammation, which has been associated with a negative effect on vaccine efficacy, the study said