Air pollution as bad as smoking a cigarette pack per day
New York, Aug 14: Researchers have found that ozone air pollution which is increasing with climate change can accelerate lung disease as much as that by smoking a pack of cigarettes a day.
"We were surprised to see how strong air pollution''s impact was on the progression of emphysema on lung scans, in the same league as the effects of cigarette smoking, which is by far the best-known cause of emphysema," said Joel Kaufman, Professor at the University of Washington.
If you live in areas with increased levels of ozone, researchers found an increase in emphysema roughly the equivalent of smoking a pack of cigarettes a day for 29 years.
The study, published in the journal JAMA, demonstrates an association between long-term exposure to major air pollutants - especially ozone - with an increase in emphysema seen on lung scans.
Emphysema is a condition in which destruction of lung tissue leads to wheezing, coughing and shortness of breath and increases the risk of death.
The results are based on an extensive, 18-year study involving more than 7,000 people and a detailed examination of the air pollution they encountered between 2000 and 2018 in six metropolitan regions across the US. The participants were drawn from the Multi-Ethnic Study of Atherosclerosis (MESA) Air and Lung studies.
"To our knowledge, this is the first longitudinal study to assess the association between long-term exposure to air pollutants and progression of percent emphysema in a large, community-based, multi-ethnic cohort," said Meng Wang, Assistant Professor at the University at Buffalo.
While most of the airborne pollutants are in decline because of successful efforts to reduce them, ozone has been increasing, researchers said. Ground-level ozone is mostly produced when ultraviolet light reacts with pollutants from fossil fuels.
Let the Truth be known. If you read VB and like VB, please be a VB Supporter and Help us deliver the Truth to one and all.
Govt clears procurement of ammunition for Pinaka rocket systems
New Delhi (PTI): The government is learnt to have cleared a proposal to procure ammunition for Pinaka multi-launch rocket systems at a cost of Rs 10,200 crore, people familiar with the matter said on Wednesday.
Army Chief Gen Upendra Dwivedi on January 13 said that two Pinaka contracts -- one for high explosive pre-fragmented ammunition and another for area denial munitions -- are set to be inked before end of the current fiscal.
The people cited above said the procurement has been given the required go ahead.
The two types of ammunition are being procured for around six Pinaka regiments that the Army plans to deploy to bolster its combat prowess along the northern frontier with China.
The Army already has four regiments of Pinaka rocket systems.
While the Pinaka MK-I rocket system has a range of around 40 km, the Pinaka II variant can hit targets at a distance of 60 km.
The Army is enhancing the combat prowess of its artillery units along the frontier with China by procuring an array of weapons systems including an additional batch of 100 K9 Vajra howitzers, swarm drones, loitering munitions and surveillance systems.
