scholarly journals DETERMINATION OF THE MOST POLLUTED ATMOSPHERIC AIR POLLUTION CATEGORY OF ALMATY CITY

2020 ◽  
pp. 34-40
Author(s):  
Zh Sarsenova ◽  
Sh Saimassayeva ◽  
A. Smaiyl
Keyword(s):  
Air Pollution ◽  
Suspended Particles ◽  
Pollution Level ◽  
Sensor Location ◽  
Atmospheric Air ◽  
Common Category ◽  
Single Data ◽  
The Impact ◽  
The City

This article discusses the impact of suspended particles on human health, by providing small definitions of PM2.5, including how they appear, what particles they consist of, and how they harm the respiratory and circulatory systems.  In addition, the analysis of the pollution level of the city of Almaty for the last three years from March 22, 2017, to October 6, 2020, with categorical intermediate values of suspended particles was carried out. Careful work was done with the SCV file such as data was skipped in the cells, that is, there were empty values; translation to a single data type; filling in empty cells. It also considers making a decision on the six categories provided to identify the average meeting categories. The authors identified specific categories based on digital readings of values received from sensors, where each category has its own verbal values that are understandable for each person. The indicator displays with weights as a graph for a specific Seifullin-Dulatov sensor location with categorical and without categorical division. Then for each intersection or location of the sensors is shown in a table. It is also revealed which level or category is the rarest among the others and the most common category as well.

scholarly journals Environment Quality: Impact From Traffic, Power Plant and Land Morphology, a Case Study of Prishtina

2017 ◽  
Vol 19 (1) ◽  
pp. 65-74 ◽  
Author(s):  
Bujar Bajcinovci
Keyword(s):  
Air Pollution ◽  
Power Plants ◽  
Urban Air Pollution ◽  
Capital City ◽  
Health Concern ◽  
Pollution Level ◽  
Environmental Air ◽  
The Impact ◽  
The City ◽  
Environmental Air Pollution

Abstract Environmental air pollution is a global health concern, a complex phenomenon which is directly reflected on public health, economic and human development. Environmental air pollution has been drastically multiplied, followed by the beginning of the new Millennia in Prishtina, the capital city of the Kosovo. The new millennium began as a crucial activity for the city of Prishtina in terms of demographic, human geography, social and economic phenomena. The presented study aims to determine prevalent traffic and land morphology composition attributes, which have influenced and continue to have environmental impact in the city of Prishtina. According to the conceptual findings from the empirical observations, the heavy city traffic and the land morphology structure, determine the urban air pollution level. Prishtina is generally polluted due to its geomorphic position in relation to the power plants Kosovo A, and Kosova B. The impact of the above cited factors, is even bigger when the dominant winds prevail through valley, which encompasses the city. The findings from this paper propose the necessity of careful driven urban solutions.

scholarly journals Загрязнение воздуха твердыми частицами в пяти точках Владивостока (морской и автомобильный транспорт)

2020 ◽  
Vol 44 (3) ◽  
pp. 93-103
Author(s):  
Hong Hai Le
Keyword(s):  
Air Pollution ◽  
Solid Particles ◽  
Traffic Load ◽  
Particulate Emissions ◽  
Traffic Flows ◽  
Atmospheric Air ◽  
Exhaust Gases ◽  
The Impact ◽  
The City ◽  
Port Areas

Проведена оценка влияния автомобильных и судовых транспортных потоков на общую концентрацию взвешенных частиц (РМ) в атмосферном воздухе города Владивостока. В авторском эксперименте делались замеры в пяти контрольных точках, различных по орографическим характеристикам и уровню транспортной нагрузки. Было учтено загрязнение атмосферного воздуха твердыми частицами, которые содержатся в отработанных газах (ОГ) судовых энергетических установок (ССЭУ). Определено, что транспортные потоки – один из основных источников РМ в атмосферном воздухе Владивостока. Дифференцированная оценка уровня загрязнения РМ транспортными потоками позволила определить диапазон выбросов РМ от ОГ ССЭУ в атмосферу (в зависимости от орографических и климатических характеристик): 15–90%. В двух районах города, наиболее близких к портовым зонам, этот показатель оказался выше почти в 2 раза, чем в контрольной точке, наиболее удаленной от портовых зон. Ключевые слова: выбросы твердых частиц, водный транспорт, отработанные газы судовых установок, концентрация частиц в воздухе, воздух портового города, загрязнение воздуха частицами. The impact of automobile and maritime traffic flows on the total concentration of suspended particles (RM) in the atmospheric air of the city of Vladivostok was assessed. In the experiment, measurements were made at five control points with different orographic characteristics and levels of traffic load intensity. Also, air pollution with solid particles emitted by exhaust gases (exhaust) of marine power plants (SSEU) was taken into account. It is determined that traffic flows are one of the main sources of RM in the atmospheric air of the city of Vladivostok. A differentiated assessment of the level of PM pollution by traffic flows showed that depending on the geographical and climatic characteristics, overall contribution of PM from the OG SSEU to the urban atmosphere is in the range of 15–90%. At two spots closest to the port areas, this value was 70% and 80%. This indicator is almost two times higher than at the control point most remote from port areas. Keywords: particulate emissions, water transport, exhaust gases from ship installations, particle concentration in air, port city air, particle air pollution.

ASSESSMENT OF THE STATE OF AIR POLLUTION ON A SEGMENT OF THE CITY HIGHWAY (ON THE EXAMPLE OF MIRA AVENUE IN THE CITY OF OMSK)

2021 ◽  
Vol 72 (1) ◽  
pp. 88-95
Author(s):  
E.V. PARSAEV ◽  
◽  
I.A. TETERINA ◽  
P.N. MALYUGIN ◽  
◽  
...  
Keyword(s):  
Air Pollution ◽  
Traffic Management ◽  
Heavy Traffic ◽  
The State ◽  
Pollutant Emissions ◽  
Qualitative Assessment ◽  
Main Components ◽  
The Impact ◽  
The City

The article presents the results of experimental and theoretical studies aimed at performing a qualitative assessment of the impact of traffic management on the level of air pollution from traffic flows in different sections of one segment of the city highway. Assessment of the state of atmospher-ic air pollution on a highway with heavy traffic (Pr. Mira, Omsk city) was carried out on the basis of determination of carbon monoxide (CO) in the air as one of the main components of the exhaust gases of the traffic stream. Calculations are graphically presented, indicating the unevenness of the amount of pollutant emissions by one passenger car moving along a conditional segment of the city highway with various variations in traffic conditions due to traffic management.

scholarly journals Reduction of transport-related air pollution. A case study based on the impact of the COVID-19 pandemic on the level of NOx emissions in the city of Krakow

2021 ◽  
Vol 11 (1) ◽  
pp. 790-796
Author(s):  
Maciej Mikulski ◽  
Paweł Droździel ◽  
Sławomir Tarkowski
Keyword(s):  
Air Pollution ◽  
Nitrogen Oxides ◽  
Human Mobility ◽  
Significance Test ◽  
Pollution Level ◽  
Measurement Results ◽  
The Mean ◽  
The Impact ◽  
The City

Abstract This article describes the impact of limiting human mobility related to the COVID-19 pandemic on the level of air pollution related to transport. The city of Krakow and the emission level of nitrogen oxides (NOx) were used as a case study. This article describes the air quality monitoring system in Krakow and the measurement results from the measurement station at Krasinskiego Avenue. The average values of the pollution level in April 2018–2020 were compared. For the selected range of data, a significance test was performed, which resulted in no grounds for rejecting the hypothesis of the equality of the mean levels of nitrogen oxides concentrations in the spring. The analysis takes into account the average monthly temperatures in the discussed years.

scholarly journals Environmental Regulation and Exports: Evidence from the Comprehensive Air Pollution Policy in China

2021 ◽  
Vol 18 (3) ◽  
pp. 1316 ◽  
Author(s):  
Hong Chen ◽  
Yang Xu
Keyword(s):  
Air Pollution ◽  
Environmental Regulation ◽  
Pollution Prevention ◽  
Firm Entry ◽  
Entry And Exit ◽  
Control Plan ◽  
Heterogeneous Effects ◽  
The Impact ◽  
The City ◽  
Firm Entry And Exit

The impact of environmental regulation has been an important topic. Based on the Chinese Custom Database and China City Statistical Yearbook, this paper investigates the effect of environmental regulation on export values and explores potential mechanisms and heterogeneous effects. Taking advantage of China’s first comprehensive air pollution prevention and control plan, the Air Pollution Control in Key Zones policy, as a quasi-natural experiment, we employ the difference-in-differences method to examine the causal relationship between environmental regulation and exports. We find the statistically significant and negative effect of environmental regulation on exports at the city level. Moreover, we find that the potential mechanism is the change in export values caused by firm entry and exit, especially by exiters, rather than the change in the number of exporting firms in the city caused by firm entry and exit. In addition, we find the heterogeneous effects of environmental regulation based on the differences of environmental policy across cities and the Broad Economic Categories classification.

scholarly journals Scalable kernel-based SVM classification algorithm on imbalance air quality data for proficient healthcare

2021 ◽  
Author(s):  
Shwet Ketu ◽  
Pramod Kumar Mishra
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Class Imbalance ◽  
Imbalanced Data ◽  
Classification Algorithm ◽  
Quality Data ◽  
Pollution Level ◽  
Classification Problems ◽  
Chi Square ◽  
The Impact

AbstractIn the last decade, we have seen drastic changes in the air pollution level, which has become a critical environmental issue. It should be handled carefully towards making the solutions for proficient healthcare. Reducing the impact of air pollution on human health is possible only if the data is correctly classified. In numerous classification problems, we are facing the class imbalance issue. Learning from imbalanced data is always a challenging task for researchers, and from time to time, possible solutions have been developed by researchers. In this paper, we are focused on dealing with the imbalanced class distribution in a way that the classification algorithm will not compromise its performance. The proposed algorithm is based on the concept of the adjusting kernel scaling (AKS) method to deal with the multi-class imbalanced dataset. The kernel function's selection has been evaluated with the help of weighting criteria and the chi-square test. All the experimental evaluation has been performed on sensor-based Indian Central Pollution Control Board (CPCB) dataset. The proposed algorithm with the highest accuracy of 99.66% wins the race among all the classification algorithms i.e. Adaboost (59.72%), Multi-Layer Perceptron (95.71%), GaussianNB (80.87%), and SVM (96.92). The results of the proposed algorithm are also better than the existing literature methods. It is also clear from these results that our proposed algorithm is efficient for dealing with class imbalance problems along with enhanced performance. Thus, accurate classification of air quality through our proposed algorithm will be useful for improving the existing preventive policies and will also help in enhancing the capabilities of effective emergency response in the worst pollution situation.

Distribution of PBDEs in Atmospheric Total Suspended Particles Collected from Kunming, China

2014 ◽  
Vol 955-959 ◽  
pp. 1204-1209
Author(s):  
Xiao Li ◽  
Xiao Man Li ◽  
Xiao Xia Yang ◽  
Qiang Li ◽  
Bin Huang ◽  
...  
Keyword(s):  
Hong Kong ◽  
Polybrominated Diphenyl Ethers ◽  
Suspended Particles ◽  
Mean Value ◽  
Urban Center ◽  
Total Suspended Particles ◽  
Diphenyl Ethers ◽  
The City ◽  
Reliable Analytical Method

An efficient and reliable analytical method has been used for determination of polybrominated diphenyl ethers (PBDEs) in atmospheric total suspended particles collected from the six state controlling air sampling sites and two self-selection sampling sites in Kunming, China. The results showed that the overall average concentrations of TSP collected from Kunming were in the range of 44.36 μg/m3 to 82.22 μg/m3. This pattern was lower than the average concentrations of Guiyu, Guangzhou and similar to Hong Kong. In TSP, the penta-BDEs and octa-BDEs were the dominant PBDEs and the PBDEs concentration ranged from 12.39 pg/m3 to 71.51 pg/m3, with a mean value of 46.82 pg/m3. This level was below the city of Guiyu, Örebro in Sweden and similar to Hong Kong, Guangzhou. The average concentrations of PBDEs had the trend of descent from the urban center to the outskirts of Kunming.

scholarly journals Bioindication of atmospheric air quality based on the condition of Pinus sylvestris l. Needles in the conditions of the city of Orsk, Orenburg region

2021 ◽  
Vol 2 (44) ◽  
pp. 3-3
Author(s):  
Alexander Saakian ◽  
◽  
Keyword(s):  
Air Pollution ◽  
Pinus Sylvestris ◽  
Morphological Characteristics ◽  
Southern Urals ◽  
Pine Needles ◽  
The Southern Urals ◽  
Atmospheric Air ◽  
Orenburg Region ◽  
The City ◽  
Industrial Center

The article presents the results of a bioindication study of atmospheric air pollution on the condition of pine needles (Pinus sylvestris L.) on the example of the city of Orsk, Orenburg region. The city of Orsk is a major industrial center of the Southern Urals. The research was carried out on 6 sites located within the city with different anthropogenic loads. The research method is based on the direct dependence of damage to Pinus sylvestris L. needles (necrosis and desiccation) on the level of atmospheric air pollution. Analyzed the morphological characteristics of the needles of Pinus sylvestris L. in the studied areas. The result of the study is an assessment of the state of atmospheric air. Keywords: BIOINDICATION, SCOTS PINE, NEEDLES, AIR POLLUTION, ORSK CITY, ORENBURG REGION

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