a. d. prasad
-
Introduction
Each one of us is directly or indirectly exposed to noise pollution in our daily life. Noise has chronic effect on the human but many of us are not aware. In our modern research platform very few studies are available for monitoring and mitigating of noise pollution compared to other environmental pollution.
Materials and methodsThis study has been designed to monitor, map the noise pollution in educational institute and find out the sources of noise followed by identification of hot spot. In this regards National Institute of Technology Raipur, Chhattisgarh, India was selected as study area. Noise levels measurements were carried out at 15 locations within the study area at time intervals of forenoon (9:30 – 10:30 AM), noon (12:30-1:30 PM) and afternoon (4:30-5:30 PM) for 5 days of the week (working days). Using GIS tool observed noise levels were interpolated by Inverse Distance Weighted (IDW) method and graphical plots were prepared for different time intervals.
ResultsNoise Levels were found to be between 46 dBA to 72.08 dBA during our study. Sources contributing to higher levels of noise in the premises were traffic, honking of trains followed by students themselves. On comparing the finding with Central Pollution Control Board, New Delhi, India (CPCB) standards all the locations recorded higher noise levels than the prescribed limits.
ConclusionBased on our finding, mitigating approaches like: plantation of trees, construction of noise barriers, proper parking area, restricting high speed of vehicles etc. were suggested for making a healthy learning environment.
Keywords: Noise mapping, Inverse distance weighted (IDW), Hot spot, Educational institute, India -
Introduction
Particulate matter pollutants and gaseous pollutants are some of the most hazardous pollutants released into the atmosphere. In order to determine how these pollutants impact the living being at breathing height, the current study measures these pollutants using wireless sensors at a height of 1 m above the ground.
Materials and methodsIn this study, horizontal monitoring of the air pollutants using wireless sensors at twenty-four locations covering four zones including industrial, residential, public-place and transportation of the Raipur city has been evaluated. Spatial variation has been obtained using Inverse Distance Weighting (IDW) method in Geographic Information System (GIS).
ResultsThe obtained results indicate that as compared to the monsoon and post-monsoon seasons, the concentrations of air pollutants are highest in the winter. It was observed that Particulate Matters (PM2.5 and PM10) are the main causes of declining air quality, but Nitrogen dioxide (NO2) and Sulfur dioxide (SO2) concentrations were below Central Pollution Control Board (CPCB) guidelines except for NO2 in winter. The Carbon monoxide (CO) concentration has been above the standard limit in all three seasons. The main finding of this study is to evaluate how air contaminants vary in space and time near the ground surface which is not possible through the static monitoring instruments in the study area.
ConclusionThe primary benefit of the obtained results is their great resolution in a compact area, effectively addressing the air quality issue. The findings suggest that seasonality has a substantial impact on the amount of pollutants in the city. According to the temporal distributions of the air pollutants, monsoon had the best air quality, followed by post-monsoon while the winter season has the highest concentration of pollution.
Keywords: Geospatial approach, Central pollutioncontrol board (CPCB), Inverse distanceweighted (IDW), Geographical informationsystem (GIS), Raipur city
- در این صفحه نام مورد نظر در اسامی نویسندگان مقالات جستجو میشود. ممکن است نتایج شامل مطالب نویسندگان هم نام و حتی در رشتههای مختلف باشد.
- همه مقالات ترجمه فارسی یا انگلیسی ندارند پس ممکن است مقالاتی باشند که نام نویسنده مورد نظر شما به صورت معادل فارسی یا انگلیسی آن درج شده باشد. در صفحه جستجوی پیشرفته میتوانید همزمان نام فارسی و انگلیسی نویسنده را درج نمایید.
- در صورتی که میخواهید جستجو را با شرایط متفاوت تکرار کنید به صفحه جستجوی پیشرفته مطالب نشریات مراجعه کنید.