Questions tagged [air-pollution]
Air pollution is the introduction of particulates, biological molecules, or other harmful materials into Earth's atmosphere, causing diseases, allergies, death to humans, damage to other living organisms such as animals and food crops, or the natural or built environment.
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questions with no upvoted or accepted answers
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How can ice crystals with adsorbed chlorine remain over the south pole all winter?
I just saw the Periodic Video Ozone on Bondi Beach - Periodic Table of Videos where the impact of Chlorine from CFCs on Ozone is discussed. At around 04:00 or so, ...
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What meteorological factors contribute to springtime Trans-Pacific air-pollution events?
The transport of tropospheric ozone, ozone precursors, carbon monoxide, etc from Asia to North America is an active area of research (see J.L. Ambrose, et al., 2011) These types of events occur ...
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432 views
Monitoring air pollution with Landsat satellite data
I'm trying to build an air pollution model. So far I have built one for point sources. Now I'm looking at monitoring air pollution with satellite images, based on the idea that every basic pollutant ...
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101 views
Possible new air pollution in town, what to do
Over the last approximately six month an auto parts plant in town has started releasing quite a bit of what smells like paint fumes. When it first started it was pretty rare to get an overwhelming ...
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Dig in the rationality of model evaluation of WRF with land-based station data
I use WRF (Weather research and forecasting) model for in regional scale meteorology simulation. And then, the WRF output files will be deemed as criterial input data applying for chemical transport ...
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71 views
What are the benefits of direct sun viewing spectrometer over a backscatter measuring spectrometer to quantify trace gases in the atmosphere?
I am using a Pandora spectrometer and a MAX-DOAS spectrometer to quantify the amount of formaldehyde (HCHO) present in the troposphere and stratosphere in Fairbanks, Alaska. Both the spectrometers use ...
4
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200 views
How to explain the diurnal variation for different seasons
In a recent work, I'm trying to figure out the pollution situation of my case area. Dealing with the online equipments, I have got the PM2.5 and PM10 concentration time series for a whole year.
I ...
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251 views
How to transform the inventory data from degrees to kilometers
First all, my question was different from the question Converting grid resolution from degrees to kilometers.
In chemical transport modeling, the pollutant source inventory was an essential input ...
3
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87 views
The factors should be considered to determine one specific pollutant originated from regional transportation?
Ideally, one pollutant (e.g. organic carbon, heavy metals, sulfate) should be the mixed result of local emissions and regional transportation.
To quantify the contribution of local emissions is of ...
3
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74 views
How is water surrounding an area of pollution, able to 'trap' that pollution, or otherwise deteriorate air quality?
An article seems to assert that air pollution can be held in place (or 'trapped') by high mountains surrounding the area of air pollution.
This seems very understandable. But the same article seems ...
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How is it determined whether an air pollutant is “hazardous”?
The US EPA has a list of 187 air pollutants that they consider "hazardous". These toxic pollutants are known or suspected to cause cancer or other serious health conditions. How is it determined ...
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Correlation analysis with primary air pollutants and secondary formed ozone
The Ph.D dissertation Assessment of air quality in Northern China by using the
COSMO-ART model in conjunction with satellite and
ground-based data which was written by Stefanie Schrader in KIT German....
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1answer
32 views
How to generate inputs for the MUNICH model from the VEIN model
MUNICH is the Model of Urban Network of Intersecting Canyons and Highways (MUNICH) (Kim et al., 2018) and VEIN is the Vehicular Emissions INventory model (Ibarra-Espinosa et al, 2018), an R package.
...
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73 views
Is pollution the reason why rainbows are so rare nowadays?
Today I saw a rainbow after almost a decade. I live in Noida (a city) in India. Most people I know believe that: we don't see rainbows nowadays because of pollution and now after nearly 3 months since ...
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51 views
What is the reason for this high outdoor VOC level with strange pattern of slow rise and sudden falling?
I have an Atmotube Pro air quality sensor placed outside in a cup with a large bowl placed over the top of it to protect it from the wind and any rain but to allow air to filter through easily.
I'm ...
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54 views
The difficulties for the simulation of atmospheric metals
Atmospheric metals usually reside in aerosols with complex source origins. The concentrations distribution of metals especially for those with high toxicity (Pb, Cd, Ni, V) should be informative for ...
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54 views
Determining '< x' values as numeric
I do have a large dataset containing nearly a decade of particulate matter measurements. At the lower precision limit of the measuring instrument, there are values given like ...
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52 views
District/province wise air quality data for South Asia (2010 onward)
I would like to create a district/province-level air quality data for all the countries in South Asia from 2010 onward using satellite data.
As someone with absolutely zero background in remote-...
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45 views
To what extent does lightning produced NOx end up in the atmopsheric boundary layer?
Lightning produced NO$_{x}$ (emitted as NO but quickly converted to NO$_{2}$) can be one of the major sources of atmospheric NO$_{x}$ in the tropics [1]. Estimates of emissions per flash range from 10 ...
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105 views
Dry deposition of the total sulfate deposition in forested region
Sulfate is one important inorganic aerosol in the atmosphere. It's subject to removal by two main mechanisms.
Wet deposition which include rain/wash-out and cloud deposition.
Dry deposition ...
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14 views
How can I specifiy a substance in AERMOD?
Since I use OTHER as a pollutant ID, are there some parameters I could specify in order to get better results for dispersion of substance I am trying to model? eg. molecular weight or density?
