Sunlight Releases Toxic Chemicals in City Grime


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“Rather than being a permanent sink for nitrogen oxide gases, grime exposed to sunlight can re-release some of these gases back into the urban atmosphere,” Donaldson explained at an American. MONDAY, Aug. 17, 2015 (HealthDay News)—Sunlight causes grime on city buildings, statues and other outdoor surfaces to release chemicals that create smog, according to a new study. City grime is a mixture of thousands of chemicals—including nitrogen oxides—emitted into the air by vehicle.

Some of Prof Donaldson’s previous work had already shown that in a laboratory, artificial sunlight can strip the nitrogen component from grime which is essentially a cocktail of chemicals belched. MONDAY, Aug. 17, 2015 (HealthDay News) Sunlight causes grime on city buildings, statues and other outdoor surfaces to release chemicals that create smog, according to a new study. City grime is a mixture of thousands of chemicals including nitrogen oxides emitted into the air by vehicles, factories and other. But there’s still plenty of grime.

Combustion from cars, factories and fires spews out nitrogen oxides. Those compounds react with sunlight and air to form ozone—the main ingredient in smog. And. When urban grime is zapped by sunlight, it may activate and release harmful components back into the air, making it more polluted than we originally thought. James Donaldson, a physical chemist.

City dirt releases toxic nitrogen oxide compounds when illuminated by the Sun, increasing air pollution levels in urban areas, a new study has revealed. The study conducted by researchers from the University of Toronto is the first of its kind, looking at the grime covering buildings, statues and outdoor surfaces in cities as a potential source of the toxic pollution. BOSTON, Aug.17, 2015 — In a first-of-its-kind study, researchers have determined that natural sunlight triggers the release of smog-forming nitrogen oxide compounds from the grime that typically coats buildings, statues and other outdoor surfaces in urban areas.

There have been a lot of worrisome reports recently about the health effects of sunscreens with chemical ingredients such as oxybenzone and avobenzone, substances shown to protect skin from the. A. Dearest Michaelann, Call me crazy, but I don’t hate cleaning. There’s something so satisfying about putting one’s home in shiny, grime-free order — like feng shui on the scale of dust.

List of related literature:

Nontoxic, seemingly harmless chlorofluorocarbons (CFCs) from spray cans and refrigerators eroded Earth’s protective ozone shield, thereby threatening the well-being of humans as well as the functioning of ecosystems.

“Chemical Fate and Transport in the Environment” by Harold F. Hemond, Elizabeth J. Fechner
from Chemical Fate and Transport in the Environment
by Harold F. Hemond, Elizabeth J. Fechner
Elsevier Science, 2014

In the presence of sunlight, primary air pollutants, namely CO, VOCs and NOx react to produce tropospheric ozone (Finlayson-Pitts and

“Air Pollution: Sources, Impacts and Controls” by Pallavi Saxena, Vaishali Naik
from Air Pollution: Sources, Impacts and Controls
by Pallavi Saxena, Vaishali Naik
CAB International, 2018

These effects can occur only when the noxious products in question are produced more rapidly than they can be destroyed by the agency of sunlight.

“Human Life: Its Philosophy and Laws” by Herbert M. Shelton
from Human Life: Its Philosophy and Laws
by Herbert M. Shelton
Health Research, 1979

Man­made chlorofluorocarbons from air conditioners and cans of hairspray and deodorant, among other products, had been escaping into the atmosphere and destroying ozone, thus increasing the amount of ultraviolet radiation reaching us.

“Botany: An Introduction to Plant Biology” by James D. Mauseth
from Botany: An Introduction to Plant Biology
by James D. Mauseth
Jones & Bartlett Learning, 2014

Certain chemicals called chlorofluorocarbons (CFCs), used in refrigerators and air-conditioning units, destroy Earth’s protective ozone layer that shields us from the sun’s harmful ultraviolet radiation.

“Keepers of the Animals: Native American Stories and Wildlife Activities for Children” by Michael J. Caduto, Joseph Bruchac
from Keepers of the Animals: Native American Stories and Wildlife Activities for Children
by Michael J. Caduto, Joseph Bruchac
Fulcrum Publ., 1997

Some are carcinogenic and some may contribute to the destruction of the ozone layer in the upper atmosphere, which protects all life from the sun’s strong UV radiation, while other organic chemicals are concentrated and persist in living tissue with an, as yet, unknown effect.

“Environmental Organic Chemistry for Engineers” by James G. Speight
from Environmental Organic Chemistry for Engineers
by James G. Speight
Elsevier Science, 2016

Human exposure to the ozone that vents from the system or the storage tanks must be avoided, since even short-term exposure to a concentration of 0.1 mg/L of ozone may cause irritation of the mucous membranes.

“Soilless Culture: Theory and Practice: Theory and Practice” by Michael Raviv, J. Heinrich Lieth, Asher Bar-Tal
from Soilless Culture: Theory and Practice: Theory and Practice
by Michael Raviv, J. Heinrich Lieth, Asher Bar-Tal
Elsevier Science, 2019

Chemicals known as chlorofluorocarbons (CFCs), used in aerosol sprays, refrigerators and fire extinguishers, were found to be harmful to the ozone layer which protects the Earth from the sun’s harmful ultraviolet radiation.

“Mastering Modern World History” by Norman Lowe
from Mastering Modern World History
by Norman Lowe
Palgrave Macmillan, 2013

Over the last decade, research has shown that the ozone layer in the upper atmosphere is also threatened by Freons,* a group of stable, noncorrosive compounds long used as refrigerants and propellants in aerosol cans.

“Chemical Principles” by Steven S. Zumdahl, Donald J. DeCoste
from Chemical Principles
by Steven S. Zumdahl, Donald J. DeCoste
Cengage Learning, 2016

which could mean a loss of mean daily sunshine The most direct effect of particulate pollution of 16 minutes in the outer suburbs, 25 minutes is to reduce incoming radiation and sunshine.

“Atmosphere, Weather, and Climate” by Roger Graham Barry, Richard J. Chorley
from Atmosphere, Weather, and Climate
by Roger Graham Barry, Richard J. Chorley
Routledge, 1992

Oktay Kutluk

Kutluk Oktay, MD, FACOG is one of the world's foremost experts in fertility preservation as well as ovarian stimulation and in vitro fertilization for infertility treatments. He developed and performed the world's first ovarian transplantation procedures as well as pioneered new ovarian stimulation protocols for embryo and oocyte freezing for breast and endometrial cancer patients.

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  • i dout 21 pilots will see this i dont know what the next albums theme is but i wanna name it chocking hazard (I dont know how to spell chocking)

  • Not for nothing but DMM permeated the latex glove of Dr. Karen W. up at Dartmouth College. That’s what lead to her subsequent dementia and eventual death.

  • Wenas, si viniste de heavydirtysoul, vas bien
    La próxima letra es:
    A difficult beast feasting on burnt down trees
    Freeze frame, please let me paint a mental picture portrait
    Something you won’t forget, it’s all about my forehead

  • Ahhhhhhh cooooooon queeeeeee nooooooooo saaaaaaabeeeeeeeessssssss deeeeeeee queeeeeeee teeeeee aaaaaguuuuuuuuuuuuuuuuuuaaaaaaaaaantaaaaaaaaaas laaaaaaaaaa riiiiiiiiiiisaaaaaaaaaaaaaaa

  • If they don’t react to anything nor stick to anything, how do they cause cancer? I heard there is a giant yellow ball of gas in the sky that might cause cancer too.

  • Another reason to VOTE FOR BERNIE..THIS IS THE TIME FOR AMERICANS TO TAKE BACK GOVERNMENT FROM THE BILLIONAIRES.. Chemicals are all over USthat means YOU AND ME…. Airplane Jet fule, Car Exhaust, Road Dust, you wonder why Cancer is so prevalent and of course you have to pay for your own treatment while Conglomerate companies get rich and stay rich by buying US senators and congressmen!! Why if you are a conservative you are only concerned about money and power.. and conserving it..

  • The Holy Scriptures speaks to this in this verse of the holy script!

    ������������“The earth is given into the hand of the wicked: he covereth the faces of the judges thereof; if not, where, and who is he?”
    ‭‭Job‬ ‭ 9:24‬ ‭KJV‬‬

  • Pardon my language, I am about to curse. After watching this and definitely believing (backed by CDC), HOW THA FUCK do you want me to contribute to American Cancer Society to find cure!!!!????? No point whatsoever! America is unbelievable!!!

  • Dude this list wrong. It’s actually:
    10. Plutonium
    9. Conotoxin
    8. Ricin
    7. VX
    6. Abrin
    5. Texitilotoxin
    4. Palytoxin
    3. Maitotoxin
    2. Polonium
    1. Botulinum

  • my brain while watching this: nednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednednedned

  • Chlorine Diccionario:Monstruo Encontrado en las piscinas
    Chlorine Google:Monstruito kawai que vive en la piscina de tayler
    Chlorine Gente:Monstruito que te ensucia la piscina y de lo delicado que es se sale,cada vez que lo limpias se mete en la piscina y lo ensucia resumen es un vato bien sad

  • You left out a few of the really bad ones.
    1. Chlorine Triflouride
    2. Dimethyl Cadmium
    3. Ricin
    4. Abrin
    5. Flouroantimonic Acid
    6. Polonium 210
    7. Hydrogen Sulfide
    8. Carbon Monoxide
    And a whole boatload more…

  • World Wreckers strike again. Constantly telling everyone that they are the smartest, when everything they have created is destroying the environment.

  • Don’t panic. his is not about something that acts quickly. And it is not something with a strong carcinogenic effect. That said, it is a severe problem. Because it accumulates over time, very similar to CO2 accumulating over time. Other greenhouse gases degrade, like methane after about 26 years. But CO2 and PFAS do not. It is even possible that we should rationally ignore PFAS and care about climate change to minimize total harm. But accumulating a harmful substance n the environment is so fundamentally unacceptable that it should be handled properly.
    But how can I possibly say ignoring PFAS and spending our efforts on CO2 could be good if PFAS causes cancer?
    (Note that this is a wild speculation to illustrate the idea is not illogical)
    For example, there could be an effect like this: Climate change causes more warm weather, which means more sun irradiation. And that increases the risk of skin cancer. (The cancer risk from UV radiation very much higher than the cancer risk from PFAS.)
    So it could be possible that ignoring PFAS would be the better option to minimize cancer. But then, it would be different people working on these topics so we should just work on both.

  • I got ulcerative colitis when I was 12 years old so is this is what caused it Is what I’m thinking. My docs say they don’t know where it comes from but they only know treatment. I was born in 1999 so I’m honestly really curious if I have this chemical in my system. No one in my family has ulcertive colitis but me mysteriously

  • Thanks Trevor for a very informative presentation on an otherwise very technical subject thank you! The Stockholm Convention brings together 181 countries around the world to control and ban those toxic chemicals known as Persistent Organic Pollutants…known as POPs! Yes Trevor, PPPFAAS are POPs! In 2019, PFAS, together with more than a thousand chemicals from the same family of POPs, was unanimously listed by those 181 countries for global elimination, as the exposure are far beyond just drinking water!…and can be passed on from mother to the unborn child!
    For more info on the international convention visit our website at:

  • 2:41 this is a bullshit problem invented to sell teflon!
    if you take care a cat iron frying pan is as non stick as anything and give much better results! seriously dont use that thin cheap aluminium crap! get a proper cast iron pan! ideally an older one as they had smoother surfaces modern day one get a rougher surface just so it will be easier to season which is annoying… i like sanded down my cast iron waffle iron and rea-seasoned it to get past this annoying problem.

    and never ever use dish washing liquid with them! just scrub them out under running hot water while they are still moderately warm then let them dry from the heat.
    a cast iron pan will only get better with age!

    I refuse to use anything other then cast iron for my frying pans and waffle iron! it’s way better! i do need to get a cast iron dutch oven though…

  • Why are they now finding this? Haven’t they been testing food & water, especially the state’s with the poison level of lead in the water.

  • the ones making it should be forced to submit a blood test. You know if they don’t have it then they kept away from it on purpose knowing full well the dangers while lying about it.

  • Yo! Im a rapper trying to get my new song Stash some play. So if you
    like bass, piano, and emo rap please check me out….and no Im not mormon. Lol

  • Fact, the human body absorbs more fluoride from hot showers than from drinking water. So everyone in here bragging about how nice the water filter they bought is clearly dosent get it.

  • Dimethyl mercury, or organic mercury, is sold through some chemical companies. One ounce costs in the realm of $1500. It is a slow poison that destroys the brain and nervous system.

  • Chlorine Trifluoride is a chemical that should be on this list, but better yet, the most toxic chemical in the world Dimethyl Cadmium

  • Probably the two chemicals that have killed more humans than anything else are water (tsunamis and floods) and oxygen (wildfires).

  • This is nothing new this has been going on for many years and this just something else to add on to the rest of the dangerous chemicals that are already in water before this even became known and I stopped drinking water when I was a kid moved from the south to Philadelphia because first time I drank that water it was the last time I had water and this was in the 90s

  • I have a theory that Dupont created Teflon DELIBERATELY because if you consider the way teflon has invaded so many homes, and is still sold everywhere todaybasically people are being dosed with whatever is in teflon on a daily basis EVERY time they heat those ugly old pans. Every time one of those old teflon pans (or the new ones churned out by Chemour’s Gen X) is scratched, I guarantee that your meats and veggies are tainted. Dosed regularly. Then we clean these non stick pans with brillo pads, ect and MORE of the chemicals go down the drain and into sewage plants, waterways, ect. Every friction on the surface releases at least some dose of whatever Dupont wants you ingesting on a daily basis. IS IT A COINCIDENCE THAT HEART PROBLEMS, CHILD BEHAVIOR PROBLEMS and FERTILITY PROBLEMS are plaguing this country? Hmmm, Dupont has these labcoat jerks working on a daily basis testing and testing animals in cages for various responses to chemistry they apply to cookware, textiles (things so very close to our bodies)….. could they produce cookware that would result in big pharma making profits in the billions, ect for psych meds, heart meds, cancer meds?
    People wake the heck up. BIG MONEY= BIG GREED and BIG CORRUPTION. Look no further than the clowns running Washington today. Its a joke. They are sick.
    To top it off (and this is kind of funny)I looked into the Dupont family history. Did you know the Duponts all married each other? They were not only greedy but crazy enough to commit incest with all their cousins, therefor I have one more theory. When you marry your darn cousin, you become a mutant of sorts. Heartless and crazy enough to poison the world while hiding away in a mansion. Heck, the royal family of England is all inbred as well. Generations of INBREDS marrying cousinsand we get Prince Charles as its finest example of “evolution”. They snuffed Diana. I really do believe inbreeding causes all sorts of issues with mental and emotional development. Look at Prince Andrew?? Oh and talk about incestwho can’t keep his hands off his daughter? Trump. Ive seenTrump acting completely disgusting towards Ivanka more than I care to remember. These greedy, corrupt, emotionally warped monsters leave the earth ravaged and treat everyday people like peasants.
    @ Throw OUT your non stick cookware, anything made with Gore Tex, anything with stainmaster or 3M waterproofing. Eat off of glass or cast iron, and nothing made in China!!!