Tropospheric, or ground level ozone, is not emitted directly into the air, but is created by chemical reactions between oxides of nitrogen (NOx) and volatile organic compounds (VOC). Ozone can be good or bad, depending on where it is found.Called stratospheric ozone, good ozone occurs naturally in the upper atmosphere, where it forms a protective layer that shields us from the sun's harmful ultraviolet rays. Part of: GS Prelims and Mains III – Pollution; Science and Technology In news: According to an analysis by the Centre for Science and Environment (CSE) – . Sign up for the SALT LAKE CITY — The Wasatch Front has not suffered terribly from ozone pollution this summer, but extremely active and long-lasting fireworks celebrations over July Fourth drove fine particulate pollution to extremely high levels.“My own neighborhood was nuts. An official website of the United States government.Ozone can be “good” or “bad” for health and the environment depending on where it’s found in the atmosphere. Air quality forecasts are often given with weather forecasts on handheld devices, online or in the paper or television. Ozone is one of the six common air pollutants identified in the Clean Air Act. “When you see values that are 80 or above, you have to scratch your head and wonder what is going on.”The division’s monitoring section is also closely eyeing pollution levels this summer as it relates to potential COVID-19 impacts.When the pandemic forced a lockdown this spring, Call said it was tough to tell how much the drastic declines in traffic and business activity affected pollution levels because spring is a time when pollutants are naturally diminished.As the summer wears on, and with it the potentially sweltering heat, Call said the division will be watching ozone levels if spikes in COVID-19 cases or deaths spur a return to lockdown conditions.“We will be paying particular attention to see if there is anything that could be identified or linked to coronavirus,” he said. Ozone can also be found in the troposphere, the lowest layer of the atmosphere.Tropospheric ozone (often termed "bad" ozone) is man-made, a result of air pollution from internal combustion engines and power plants.Automobile exhaust and industrial emissions release a family of nitrogen oxide gases (NOx) and volatile organic compounds (VOC), by-products of burning gasoline and coal. This …

Ozone occurs both in the Earth's upper atmosphere and at ground level. In the US, plants that are easily affected by ozone air pollution include black cherry, white pine, and red alder. You can check ozone levels and other daily air quality information by visiting There are actions every one of us can take to reduce air pollution and keep the air cleaner and precautionary measures you can take to protect your health. Slow speeds and idling vehicles produce, per trip, 4 to 8 times more pollutants and consume more carbon footprint fuels, than free flowing traffic.

This year, celebrants started putting flame to fireworks about 8 p.m. and lit up the sky until 11 p.m. or midnight, Call said.“That may be where the coronavirus stimulus check went,” Call mused.Otherwise this summer, Call said ozone levels have not been particularly troublesome due to a favorable weather pattern that has brought rain, wind and cloud cover on many days. A fairly active weather pattern bringing rain and cloud cover has helped this summer to tamp down ozone pollution along the Wasatch Front — for the most part. Chp 10: Air Pollution, Climate Change, & Ozone Depletion Traffic congestion is a daily reality of India’s urban centers.

Actions include vehicle and transportation standards, regional haze and visibility rules, and regular reviews of the NAAQS. Severe Surface Ozone Pollution in China: A Global Perspective Xiao Lu,† Jiayun Hong,† Lin Zhang,*,† Owen R. Cooper,‡,§ Martin G. Schultz,∥ Xiaobin Xu,⊥ Tao Wang,# Meng Gao,@ Yuanhong Zhao,† and Yuanhang Zhang*,∇ †Laboratory for Climate and Ocean-Atmosphere Studies, Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing 100871, China “If vehicle traffic reduces by 20 to 30%, we would really pay attention to that and tease it out to see if the values are going lower ... it would be interesting to see if those numbers materialize or not.”While ozone has not been a particularly troublesome pollutant this summer, Call said that could change if hot, sunny and stagnant weather sets in.“It is the dog days of summer when you have nothing but crickets and locusts and hot sun and no wind — that is when we expect to see high values.” Start your day with the top stories you missed while you were sleeping. July Fourth revelers, perhaps pent up over COVID-19, set off plenty of fireworks this year, driving fine particulate pollution… This beneficial ozone has been partially destroyed by manmade chemicals, causing what is sometimes called a "hole in the ozone." In particular, ozone harms sensitive vegetation during the growing season. Ozone (/ ˈ oʊ z oʊ n /), or trioxygen, is an inorganic molecule with the chemical formula O 3.It is a pale blue gas with a distinctively pungent smell. Ozone can interfere with the process of photosynthesis and damage leaves hence plants cannot produce and store food. Learn more about If the air quality in a geographic area meets or does better than the national standard, it is called an attainment area; areas that don't meet the national standard are called nonattainment areas. Tropospheric ozone can have harmful effects on plants and ecosystems. Ozone at ground level is a harmful air pollutant, because of its effects on people and the environment, and it is the main ingredient in “smog." Environmental Effects Of Ozone Air Pollution. I just sat in my backyard,” said Bo Call, manager of the Utah Division of Air Quality’s air monitoring section.The federal threshold for unhealthy levels of PM2.5, or fine particulate pollution most often dominant in the winter, is 35 micrograms per cubic meter.