Before I start writing, The World Health
Organization(WHO) report on air quality in 2006 highlighted that “clean air is
the most important basic requirement for human health and well being” thus, WHO
emphasized how important fresh air is to us humans and to the oraganisms that
are part of our World. Although environmentally sensitive structures and
renewable energy increase with the development of technology in our world, most
of the energy needs are supply with fossil fuels. If their emissions are not controlled
and precautions are not taken It is obvious that these fossil fuels used
throughout the world will cause serious harm to humans and the entire
ecosystem.
In this article, I will tell of about AERMOD,the
other name air quality modeling and control parameter. AERMOD, developed in
collaboration with EPA (Environmental Protection Agency) and AMS (American
Mathematical Society), model the pollution from source up to 50km diameter
of pollutants such as PM10, PM2.5, NOX, CO, LEAD originating from the source
with the Gauss distribution model. If we talk about how AERMOD works; the
contaminant from the source could be the chimney of a cement plant, a mine, or
any vehicle we use for transportation in our daily life.In light of
meteorological data(wind speed and direction,temperature, pressure etc.) and
depending on the location of the region, it gives us the modeling and written
result of the pollution emitted from the source to the environment. Let's
examine it with an example.
AERMOD developed in time with EPA(Environmental
Protection Agency) and AMS(American Mathematical Society), PM10, PM2.5, NOX,
CO, LEAD etc. originating from Gauss distribution model. modeling of pollution
from sources up to 50km diameter of pollutants. The following figure shows a
model distribution for a sample plant. The number 1 and 2 area sources, number
3 chimney, and number 4 vehicle sources model processed.[On the left side of the model
picture, the result of the model is annual in the “concentration” section and
on the right legant, the result of the ug(micrograms)/m3. How are these results
evaluated?
The results are evaluated according to the limit
values determined by each country according to it’s environmental conditions.
As environmental conditions, I'm stepping on it because the most important
parameter affecting AERMOD is wind speed and direction. If I have to explain
this with an example, it is spread in a narrow area where the flour is left
down in a closed environment. However, in an open environment, depending on the
strength of the wind, flour can spread miles beyond. Thus, the pollution from
the source reaches the low concentration flow rate and reaches the ideal
conditions for the human and living ecosystem. Thus, the pollution from the
source reaches the low concentration flow rate and reaches the ideal conditions
for the human and living ecosystem.
Well, let's look at how it works in our country. In
our country, the following and control of this work is “Republic of Turkey
Ministry of Environment and Urbanization”, follows as of the date of
publication of this article.
According to the results of AERMOD, 24 hour daily PM10
value in 365 days 35 times in the table gives the results exceeding the values
or if the amount of polluted dust exceeds the limit values according to the
working year, the ministry shall impose administrative sanctions on the enterprise
and these sanctions may go on until the closure of the enterprise. For this
reason, plant need to take various control measures in order to provide
boundary values. Thus, the harmful effects of pollution caused by enterprises
to the environment are tried to be kept at a minimum level.
Today, I tried to explain to you what purpose AERMOD
was used in our country from the working principle. If you have a question that
you are curious about, go to the comments section below or
mertbayraktar585@gmail.com you can ask me by e-mail.
Ömer Mert BAYRAKTAR
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