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.
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Consumers feeling the heat of rising tender coconut prices in Karnataka
Bengaluru: The cost of tender coconuts has skyrocketed in Karnataka, with retail prices now ranging between Rs 50 and Rs 60 per coconut. In parts of North India, prices have even touched Rs 80 to Rs 100. This price hike is reportedly attributed to a combination of extreme temperatures in Northern India and lower yields in Karnataka, which has been facing its own heatwave.
Maddur, the largest market for tender coconuts in India, has seen average wholesale prices fluctuating between Rs 38 and Rs 50 per coconut over the past three months. Retail prices are higher and depend upon distance from key markets such as Davangere, Tumakuru, Mandya, Hassan, and others as reported by Deccan Herald on Saturday.
During June and July of this year, tender coconuts were available for around Rs 35 in Karnataka, the country's leading coconut producer. However, prices have spiked due to a variety of factors. According to the state government's online agriculture marketing information website, Krishi Marata Vahini, wholesale prices have risen by at least Rs 10,000 per 1,000 coconuts compared to last year.
V. Rajannab, Deputy Director of the Tumakuru APMC Yard, attributed the supply disruption to the "heatwave conditions of the summer of 2024," explaining that farmers could harvest only 30% to 40% of their expected yield. He told the news outlet that the increased demand from North Indian states has further driven up prices in the local market. Nearly 60% of Karnataka's tender coconuts are shipped to North India, with states like Jammu and Kashmir and Gujarat now seeking supplies, he added.
Officials from the horticulture department have suggested that the high price of ball copra could also have impacted the supply of tender coconut. “The price of ball copra has more than doubled in the last three months, going from Rs 8,000 to Rs 18,000 a tonne. There is a general feeling that the price could go further high, which is why most of the farmers are not harvesting tender coconuts,” Horticulture Deputy Director Kadiregowda was quoted as saying by DH.
However, there is some hope for price relief in the near future. With copious rains this monsoon, the yield is anticipated to improve, which could further help stabilise the market and bring prices down in the coming weeks.
