scholarly journals AIR POLLUTION AT PARKING‐LOTS OF VILNIUS

Author(s):  
Pranas Baltrenas ◽  
Danguole Kaziukoniene ◽  
Mindaugas Kvasauskas

The expansion of Vilnius creates the need for the installation of new parking facilities. This problem could be solved by establishing guarded parking‐lots or modern underground and multi‐storey garages, in order to economize useful land and comply with the requirements of environmentalists. Investigation was carried out on parking‐lots of Vilnius. All the guarded parking‐lots are divided into three types in accordance with the size of the lot and the type of vehicles parked on it. Measurements were carried out at a lot of each type. The concentrations of hydrocarbons, nitric oxide, carbon monoxide and dust were measured. Guarded parking‐lots located at the crossroad of Ateities and L. Giros streets, on Architektu and Č. Sugiharos streets were selected for the investigation. The parking‐lot located at the crossroad of Ateities and L. Giros streets had the highest concentration of nitric oxide overrunning the permitted concentration up to 1,9 times. Besides, the concentration of carbon monoxide and hydrocarbons also overran the permitted norms. The lowest concentrations were found after measuring dust concentration in the air.

Author(s):  
Seyed Jalalaldin Faraji ◽  
Marjan Jafari Nozar

Introduction: Due to increasing the population of cities and the physical-spatial expansion of the cities, vehicles are being used progressively, which has caused many problems for the cities including traffic increase, chaos in finding urban parking lots, increase of environmental pollution, decrease of citizens’ satisfaction, and so on. Among the many urban problems, parking lot is one of the issues that has been heavily debated in recent years. The lack of sufficient number of parking lots, on the one hand, and the related disorder and management problems, on the other hand, have led to a range of managerial and environmental problems. Meanwhile, one of the paradigms that has focused on this issue in recent years is smart city paradigm, which has offered the smart parking. This paradigm believes that parking, as a part of the city’s space, can be smart and can help urban management.   Materials and methods: This is an applied research in terms of purpose and a descriptive-analytical research in terms of nature. The required data were collected using documentary and field studies and SWOT method was used to analyze the data.   Results: This study was conducted to evaluate and investigate the role of smart parking in increasing the efficiency of urban management and its im-pact on reducing air pollution.   Conclusion: Finally, the conclusion of the research have led to key strategies for achieving the research goal.


2021 ◽  
Vol 2 (1) ◽  
pp. 117
Author(s):  
Rifky Aldila P. ◽  
Andy Kristafi A.

Landungsari Market is one of the traditional markets built by the local village government to accelerate the village economy. Previously, Landungsari Market was a temporary market but with an increase in sellers who were moved from the original Merjosari market so that the local government made the Landungsari market a permanent market today. With the increasing number of seller stalls in the Landungsari market, the parking lot in the Landungsari market has decreased so that it demands the possibility of illegal parking occurs in some areas of the market. The research objective was to determine the characteristics of parking, parking feasibility, and parking solutions. The data used are primary data and secondary data. The results obtained in this study are the number of parking spaces is still less than the number of parking vehicles, namely for two-wheeled parking lots, the parking needs exceed the normal capacity, while the average motorbike parking space unit is 129 parking spaces and the average The car park space unit is 11 parking spaces, so with this condition, it is deemed inappropriate parking facilities and additional parking lots to increase the parking capacity of vehicles, especially for two-wheeled vehicles


2018 ◽  
Vol 10 (7) ◽  
pp. 2553 ◽  
Author(s):  
Jirataya Pansuk ◽  
Agapol Junpen ◽  
Savitri Garivait

The purpose of this study was to assess household solid waste management in areas governed by local administrative organizations (LAOs). The obtained results would be used to assess the amount of air pollution emitted from household solid waste open burning. A survey was employed, through the use of questionnaires, to collect data from a random sample of 4300 households residing in areas governed by 96 LAOs. According to the results, it was evident that a total of 26.17 Mt of solid waste were generated per year, of which 6.39 Mt/year was not collected by the LAOs and was eliminated by households. Moreover, the percentage of waste burned on or outside the households’ property was 53.7%, or an equivalent of 3.43 Mt/year of solid waste burned in open areas. In addition, it was found that 0.66 Mt/year of solid waste collected by the LAOs was burned in open areas and was not eliminated properly. Hence, the total amount of solid waste from these two sources was 4.09 Mt/year, which resulted in the emissions of carbon dioxide equivalent, carbon monoxide, sulfur dioxide, nitric oxide, and particulate matter of 1247.3 kt/year, 103.0 kt/year, 1.2 kt/year, 7.4 kt/year, and 19.6 kt/year, respectively.


Energies ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 6155
Author(s):  
Ruifeng Shi ◽  
Jie Zhang ◽  
Hao Su ◽  
Zihang Liang ◽  
Kwang Y. Lee

In the parking lots of public commercial areas, such as shopping malls, hospitals, and scenic spots, the parking spaces with electric vehicle (EV) charging facilities are often occupied by ordinary cars. How to regulate the parking order in the parking lot is a key issue in the operation and management of the parking facilities. In this paper, a method of assessing parking fees for vehicles parked at the charging facilities is proposed based on an economic penalty strategy, including fixed-penalty and dynamic-penalty strategies. First, a traffic flow model of the parking lot in public area is established. Then, a price and consumption model of parking fees and parking lot utilization is established, along with different penalty strategies. Finally, taking the parking lot of a shopping mall as an example, the penalty strategies are optimized through particle swarm optimization (PSO) algorithm. The simulation results show that the method proposed can help to improve the utilization of EV charging facilities in parking lots and guide the orderly parking and charging of EVs at the same time.


2020 ◽  
Author(s):  
Konstantin Khivantsev ◽  
Libor Kovarik ◽  
Nicholas R. Jaegers ◽  
János Szanyi ◽  
Yong Wang

<p>Atomically dispersed Pd +2 cations with ultra-dilute loading of palladium (0.005-0.05 wt%) were anchored on anatase titania and characterized with FTIR, microscopy and catalytic tests. CO infrared adsorption produces a sharp, narrow mono-carbonyl Pd(II)-CO band at ~2,130 cm<sup>-1</sup> indicating formation of highly uniform and stable Pd+2 ions on anatase titania. The 0.05 wt% Pd/TiO<sub>2</sub> sample was evaluated for methane combustion under dry and wet (industrially relevant) conditions in the presence and absence of carbon monoxide. Notably, we find the isolated palladium atoms respond dynamically upon oxygen concentration modulation (switching-on and switching off). When oxygen is removed from the wet methane stream, palladium ions are reduced to metallic state by methane and catalyze methane steam reforming instead of complete methane oxidation. Re-admission of oxygen restores Pd<sup>+2</sup> cations and switches off methane steam reforming activity. Moreover, 0.05 wt% Pd/TiO<sub>2</sub> is a competent CO oxidation catalyst in the presence of water steam with 90% CO conversion and TOF ~ 4,000 hr<sup>-1</sup> at 260 ⁰C. </p><p>More importantly, we find that diluting 0.05 wt% Pd/titania sample with titania to ultra-low 0.005 wt% palladium loading produces a remarkably active material for nitric oxide reduction with carbon monoxide under industrially relevant conditions with >90% conversion of nitric oxide at 180 ⁰C (~460 ppm NO and 150 L/g*hr flow rate in the presence of >2% water steam) and TOF ~6,000 hr<sup>-1</sup>. Pd thus outperforms state-of-the-art rhodium containing catalysts with (15-20 times higher rhodium loading; rhodium is ~ 3 times more expensive than palladium). Furthermore, palladium catalysts are more selective towards nitrogen and produce significantly less ammonia relative to the more traditional rhodium catalysts due to lower Pd amount nd lower water-gas-shift activity. Our study is the first example of utilizing ultra-low (0.05 wt% and less) noble metal (Pd) amounts to produce heterogeneous catalysts with extraordinary activity for nitric oxide reduction. This opens up a pathway to study other Pd, Pt and Rh containing materials with ultra-low loadings of expensive noble metals dispersed on titania or titania-coated oxides for industrially relevant nitric oxide abatement.</p>


Author(s):  
Z.B. Baktybaeva ◽  
R.A. Suleymanov ◽  
T.K. Valeev ◽  
N.R. Rahmatullin ◽  
E.G. Stepanov ◽  
...  

Introduction. High density of oil-producing and refining facilities in certain areas of Bashkortostan significantly affects the environment including ambient air quality in residential areas. Materials and methods. We analyzed concentrations of airborne toxicants (sulfur and nitrogen oxides, nitrogen and carbon oxides, hydrogen sulfide, ammonia, xylenes, toluene, phenol and total suspended particles) and population health status in the cities of Ufa, Sterlitamak, Salavat, Blagoveshchensk, and the Tuymazinsky District in 2007–2016. Pearson's correlation coefficients (r) were used to establish possible relationships between medico-demographic indicators and air pollution. Results. Republican fuel and energy enterprises contributed the most to local air pollution levels. Gross emissions from such enterprises as Bashneft-Ufaneftekhim and Bashneft-Navoil reached 43.69–49.77 thousand tons of pollutants per year. The levels of some air pollutants exceeded their maximum permissible concentrations. Elevated concentrations of ammonia, total suspended particles, nitrogen dioxide, and carbon monoxide were registered most frequently. High rates of congenital abnormalities, respiratory diseases in infants (aged 0-1), general mortality and morbidity of the population were observed in some oil-producing and refining areas. The correlation analysis proved the relationship between the concentration of carbon monoxide and general disease rates in adults based on hospital admissions (r = 0.898), general incidence rates in children (r = 0.957), and blood disease rates in infants (r = 0.821). Respiratory diseases in children correlated with nitrogen dioxide emission levels (r = 0.899). Conclusions. Further development of oil-producing, petrochemical and oil-refining industries should be carried out taking into account socio-economic living conditions of the population.


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