Noise Monitoring and Mapping for Some Pre-selected Locations of New Delhi, India

Akhtar, Nasreen; Ahmad, Kafeel; Alam, Pervez

doi:10.1142/s021947751650019x

Cited by 24 publications

(9 citation statements)

References 13 publications

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“…This corroborates the results of Kumar et al [19] who found a mean noise exposure levels of 84 dB(A) in a bus, 89 dB(A) in a rickshaw and 72 dB(A) in a car in Delhi. More recently, Akhtar et al [29] measured and mapped noise for three predetermined sites (one residential area and two commercial areas) in Delhi. They observed that noise levels greatly exceeded permissible limits, with mean levels at 75 dB(A) and hourly peaks at 80 dB(A) for the three sites.…”

Section: Cyclists' Exposure In Delhimentioning

confidence: 99%

Cycling in one of the most polluted cities in the world: Exposure to noise and air pollution and potential adverse health impacts in Delhi

2021

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Background In India, many cities struggle with extreme levels of air pollution and noise. Delhi, in particular, has the notorious reputation of being one of the most polluted cities in the world. Cyclists constitute a particularly exposed population, since they cycle among motor vehicles without any protection. This paper modeled the cyclists’ exposure to nitrogen dioxide (NO2) and noise in Delhi, India. Methods Using primary data collected on 1,229 kms of roads in Delhi, Generalized Additive Mixed Models with Auto-Regressive terms (GAMMAR) are constructed for noise exposure, NO2 exposure and NO2 inhalation doses. Results Results show that cyclists are exposed to 47 µg/m3 of NO2 and 3.3 dB(A) more when cycling on a primary road than on a residential street. Using WHO guideline values for noise and air pollution, we assessed how many minutes of inhaling doses and noise doses become potentially harmful to cyclists’ health in Delhi. Such thresholds are quickly exceeded: after cycling one hour in an area with moderate predicted values of noise and air pollution, the noise dose and inhaled dose of NO2 will reach 212% and 403 µg on residential streets, and 459% and 482 µg on primary roads, respectively. Conclusion Policy makers should take these results into account to minimize cyclists’ exposure, especially for the most deprived people.

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Section: Cyclists' Exposure In Delhimentioning

confidence: 99%

Cycling in one of the most polluted cities in the world: Exposure to noise and air pollution and potential adverse health impacts in Delhi

2021

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“…However, the literature survey also shows that the 3D noise gives a clear picture of the noise distribution in all three directions X, Y, and Z. In one of the studies of India, 3D noise maps have been developed by [Akhtar, et al, 2016] for the selected location of Delhi which gives clear picture of noise distribution in all three directions and also provides a number of the people affected in a particular residential building. Thus, from the review of noise mapping it can be concluded that the 2D noise mapping is an effective way to show the noise level distribution along with any source of noise in X and Y direction only.…”

Section: Noise Mapping Of Developing Countriesmentioning

confidence: 99%

Noise Monitoring, Mapping, and Modelling Studies – A Review

Alam¹,

Ahmad²,

Afsar³

et al. 2020

J. Ecol. Eng.

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This paper reviews the literature on noise monitoring, noise mapping and noise modeling studies carried out in different countries by many researchers. The article reveals the current status of the noise-related studies and noise mapping studies. It was discovered that 90% of the noise monitoring studies were focused on the traffic noise, while the remaining 10% focused on the residential, commercial and industrial areas. Sometimes, there may be a necessity to analyze the sound pressure levels all over the place, or around a particular piece of land and machinery of industry. Researchers have used the noise monitoring data for the development of 2D and 3D noise maps which gives a clear picture of the noise level around the source of noise in X, Y, and Z direction. For taking a decision regarding the noise level for any development project, predicting the noise level is always necessary. The traffic noise models are generally used for the purpose of prediction. Early models are based on constant vehicle speed, later some models predicted the noise level for interrupting the traffic flow. For instance, the Stop and Go model can be used for the prediction of the noise level in an interrupted flow. Four such models were reviewed and compared in this article.

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“…It is easy to understand the levels of noise in the single platform of various locations simultaneously. The distribution of noise can be prepared by the GIS software using interpolation [4] [11]. The noise map helps the policy maker for better understanding the levels of noise in different zones of the selected area or the cities [12].…”

Section: Introductionmentioning

confidence: 99%

Noise Mapping during New Year Eve in selected residential zone of Raipur City

Kumar

Ahirwar

Prasad

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Noise can be said to be invisible danger which present in our environment. Monitoring and mitigating of noise is very much important to build a health environment. This study mapped the noise levels increased during the New Year Eve 2022 of selected residential area of Raipur City. Increase in the levels of noise was seen during the Eve due to burning of crackers and use of loudspeakers during the celebrations. Five locations were selected for the study and noise map was prepared for pre and post New Year Eve 2022. From the map all the five locations showed higher noise levels (above 70dBA pre Eve and above 67dBA post Eve) than the prescribed limit (above 55 dBA day time and 45 dBA night time) of Central Pollution Control Board, New Delhi.

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Noise Monitoring and Mapping for Some Pre-selected Locations of New Delhi, India

Cited by 24 publications

References 13 publications

Cycling in one of the most polluted cities in the world: Exposure to noise and air pollution and potential adverse health impacts in Delhi

Cycling in one of the most polluted cities in the world: Exposure to noise and air pollution and potential adverse health impacts in Delhi

Noise Monitoring, Mapping, and Modelling Studies – A Review

Noise Mapping during New Year Eve in selected residential zone of Raipur City

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