want cleaner air? try using less deodorant - air cleaner
Deodorant, perfume and soap that keep us good smells are polluting the air with harmful pollution --
The level of emissions from cars and trucks is as high now.
It was an amazing discovery of a study published in the journal Science on Thursday.
The researchers found that oil
Based chemicals used in perfumes, paints and other consumer goods can together emit as much air pollution as possible in the form of volatile organic compounds or V. O. C.
Like a motor vehicle. The V. O. C.
S interacts with other particles in the air, producing components of smoke, namely Ozone, which can trigger asthma and permanently scar the lungs, and another contamination known as PM2.
5. particles related to heart disease, stroke and lung cancer.
Smog is usually related to cars, but since 1970 of regulators have pushed car manufacturers to invest significantly lower. O. C.
Emissions from cars.
Therefore, the proportion of air pollution caused by factors such as pesticides and hair products is rising, which is partly the result of the car becoming cleaner.
But the breathing room helps scientists see invisible contaminants from deodorant or shower gel spray.
The researchers said their study was inspired by the early measurement of V. O. C.
S shows oil concentration in Los Angeles-
The level based on the compound is higher than what can be predicted in Conghua Stone
Fuel sources only.
For example, the concentration of ethanol is five times higher than expected.
These levels are increasing over time.
"You can see a rapid decline in tail pipe emissions," said Brian C . "
MacDonald, a scientist at the Institute of Environmental Science Cooperation at the University of Colorado in Boulder, led the study.
"It makes sense to start looking at other sources and see if they will become relatively important.
"While people use a lot more fuel than the lotion and paint they use, depending on the weight,
Macdonald and his colleagues found that there was a significant difference in the amount of contaminants in these products in the air at the end.
Jessica B said that although drivers can use gallons of gasoline every week, "Gasoline is stored in a closed tank, it burns to get energy and is mainly converted into carbon dioxide . "
Gilman, a research chemist at the National Oceanic and Atmospheric Administration, was also involved in the study.
These carbon dioxide emissions are not smog. forming V. O. C.
Although they are the main driving force of human beings
Climate change“But these V. O. C.
What you use in your daily products
Even though it may be just a teaspoon, a watering pot or a spray-
Most of these compounds will eventually enter the atmosphere where they can react and promote the formation and small of harmful ozone-
Particle formation, "Dr. Gilman said.
The researchers found that 40% of the chemicals added to consumer products will eventually enter the air.
To perform calculations, the authors of the study constructed a computer model that simulates air quality in Los Angeles, extracting data from the chemical composition and exhaust emissions of consumer goods.
Using the model, they can see fingerprints of compounds from personal care products and can also estimate how many VO. C.
Paint and finishes inside the building are released to the outside world.
About half V. O. C.
The authors found that Los Angeles Airlines's s can be attributed to consumer goods.
Ravi Ramalingam, who leads the California Air Resources Commission's work on consumer goods and air quality, said he was not surprised as cars and trucks became cleaner and paint and perfume accounted for a growing share of emissions.
He said his agency is investigating the chemical composition of about 300,000 consumer goods sold or used in California, and preliminary results also show that the emissions of these products are higher than previously estimated, although compared to Dr.
McDonald's and his colleagues found out.
He said that their different methods may be the cause of this difference.
"We are still looking for opportunities to reduce emissions from consumer goods . "
Since the 1980 s, California has regulated the emissions of consumer goods, and federal regulations have followed. O. C.
Emission limits for a range of items including paint, varnish and varnish.
Although the researchers say this is not a treatment, consumers who are worried may turn to "natural" productsall.
For example, a class of compounds known as terpen ENE can cause many cleaning products to produce a scent of pine or citrus.
These terpen ENE can be synthesized and produced naturally from oranges.
"But whether it's synthetic or natural, once it gets into the atmosphere, it creates an incredible reactivity," said Dr. Gilman said.
Similar natural compounds give their names to the Blue Ridge Mountains of Appalachian, which is blue smoke formed by terpen ENE emitted by trees there, Dr. Gilman added. [
Please also read: an article in Time on 1964, "What makes the Blue Ridge Mountains blue"]
Galina churkirina, a researcher at Yale College of Forestry and Environmental Studies, did not participate in the study, noting that the study did not consider emissions related to biological sources such as trees and animals.
But the authors say their research is not the end of the series.
There are thousands of chemicals in consumer goods. researchers have not yet determined which chemicals are most likely to form ozone or pm2. 5. 5 particles.
"One thing we want the public to benefit from is that the energy and consumer goods we use every day are constantly changing the composition of our atmosphere," Dr. Gilman said.
It is worth noting that someO. C.
Alternatives to fluorine-containing carbon or fluorine-containing carbon used in consumer products.
These chemicals have been phased out since 1980 because they have made the ozone layer thinner on Earth.
For consumers looking for greener solutions,
McDonald's gave some advice.
"Use the product as little as possible to get the job done," he said . ".