scholarly journals Karabük İlindeki Hava Kirliliğinin Doğal Gaz Kullanımı İle Değişimi / The Change of Air Pollution in Karabuk with the Usage of Natural Gas

2013 ◽  
Vol 1 (4) ◽  
pp. 497 ◽  
Author(s):  
Yusuf ÇAY ◽  
Abdulaziz Yıldız ◽  
Firdevs ÖZER
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Natural Gas ◽  
Quality Assessment ◽  
Winter Season ◽  
Environmental Problems ◽  
Fuel Oil ◽  
Air Quality Assessment ◽  
Before And After

Fosil kaynaklı yakıtların kullanımı, hava kirliliğine sebebiyet veren en önemli unsurlardan bir tanesidir. Bu yakıtların bilinçsizce kullanılması sonucunda çevre problemlerine özellikle de hava kirliliğine neden olmaktadır. Yapılan bu çalışmada, Karabük ilinin doğalgaz kullanmaya başlamadan önceki ve doğalgaza geçiş ile hava kirlilik parametreleri (SO2 ve PM10) incelenmiştir. Doğal gaz kullanımının hava kalitesine etkisi araştırılmıştır. İlde ısınma ihtiyacını karşılamak için kömür, fuel-oil ve mazot kullanılırken 2010 yılı itibariyle doğal gaza geçilmiştir. Doğal gazın kullanılmaya başlanmasıyla bu yakıtların kullanımı azalmıştır. Çalışmanın sonunda, Hava Kalitesi Değerlendirme ve Yönetimi Yönetmeliğinde (HKDYY) belirtilen, SO2 için 250 μg/m3 değerinin doğal gaz kullanımına geçilmeden önce bazı aylarda üzerinde olduğu görülmüş ve doğal gaz kullanılmaya başlanmasından sonraki dönemlerde ise 250 μg/m3 değerinin aşılmadığı görülmüştür. PM10 için yönetmelikte belirtilen 200 μg/m3 değerinin kış sezonunda aşıldığı tespit edilmiştir. 2010 yılında Doğal gaz kullanımına geçiş ile birlikte bu değerde tekrar bir düşüş gözlenmiştir. Doğal gaz kullanım oranı artıkça havadaki SO2 ve PM10 değerlerinde ciddi düşüşler olduğu gözlenmiştir. The Change of Air Pollution in Karabuk with the Usage of Natural Gas The Usage of fossil origin fuels is one of the most important cause of air pollution. The usage of these fuels unconsciously causes environmental problems especially air pollution. In this study air pollution parameters (SO2 ve PM10) were analyzed before and after the usage of natural gas in Karabuk. The effect of usage natural gas on air quality is researched. In this city before 2010 coal, foul-oil and diesel were used to provide heat demanded then it is started using natural gas by 2010.With starting the usage of natural gas, the usage of these kind of fuels (coal, foul-oil, and diesel) has been decreased. At the end of the study-in the Air Quality Assessment and Management Regulation (AQAMR)- it is concluded that the value of 250 μg/m3 for SO2 is over in some months before using natural gas but it hasn’t exceeded 250 μg/m3 after starting the usage of natural gas. It has been identified that the value of 200 μg/m3 which is specified in regulations for PM10 has been exceeded and reached to 267 μg/m3 in the winter season. It has been observed that with starting the usage of natural gas, this value is again decreased in 2010.It is observed that while the usage of natural gas is getting more and more the value of SO2 ve PM10 are significantly decreased.

scholarly journals Assessment of air quality using a cloud model method

2018 ◽  
Vol 5 (9) ◽  
pp. 171580 ◽  
Author(s):  
Qingwei Xu ◽  
Kaili Xu
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Quality Assessment ◽  
Cloud Model ◽  
Assessment Process ◽  
Pollution Indicators ◽  
Model Method ◽  
Cloud Models ◽  
Air Quality Assessment ◽  
Assessment Results

To effectively control air pollution, it is necessary to obtain a preliminary assessment of air quality. The purpose of this study was to introduce a cloud model method in air pollution assessment. First, the standard cloud models of air pollution indicators were obtained, and the calculating process of numerical characteristics employed by the standard cloud model was explained. Second, the levels of air pollution indicators were presented based on the qualitative and quantitative analysis of cloud models, which realized the uncertainty conversion between qualitative concepts and their corresponding quantitative values, as well as taking the fuzziness and randomness into account. Air quality assessment results including SO 2 , NO 2 , CO, O 3 , PM 10 and PM 2.5 were analysed. Third, the cloud model adopted in the assessment process of air quality was validated by grey relational analysis, and the results confirmed the validity of cloud model assessment. Fourth, the air pollution level of the air quality index (AQI) was determined, and the fuzziness and randomness of the assessment results were thoroughly analysed by taking entropy and hyper entropy into consideration. Fifth, seasonal variations in different air pollution indicators were analysed to proffer a series of recommendations for government policy decision-makers and travellers. The cloud model provided a new method for air quality assessment.

scholarly journals In-vehicle air quality – recent trends in requirements and testing methods

2018 ◽  
Vol 19 (9) ◽  
pp. 41-44
Author(s):  
Krzysztof Brodzik ◽  
Joanna Faber
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Quality Assessment ◽  
Automotive Industry ◽  
Test Methods ◽  
Automotive Sector ◽  
Testing Methods ◽  
Factors Influencing ◽  
Air Quality Assessment ◽  
Recent Trends

In-vehicle air quality in passengers’ cars is discussed in present paper. The discussion is based on factors influencing substantially interior air pollution in vehicles, mainly new ones, on test methods used in automotive sector for air quality assessment, and for elimination of pollution sources. Various approaches to control and to improve in-vehicle air quality was presented with regard to probable directions applied by the automotive industry.

Air quality assessment system based on self-driven drone and LoRaWAN network

2021 ◽  
Author(s):  
Attila Simo ◽  
Simona Dzitac ◽  
Ioan Dzitac ◽  
Mihaela Frigura-Iliasa ◽  
Flaviu Mihai Frigura-Iliasa
Keyword(s):  
Air Quality ◽  
Quality Assessment ◽  
Assessment System ◽  
Air Quality Assessment
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