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Mayurbhanj, India

Mohapatra H.,Kaptipada College | Goswami S.,Ravenshaw University
Asian Journal of Water, Environment and Pollution | Year: 2012

Noise assessment is carried out in various residential, commercial and industrial places in and around Belpahar and Brajarajnagar of Ib River coalfield. The average noise intensities at various residential places range from 57.10 to 63.25 dB during day time (6 am-10 pm) and from 46.77 to 56.22 dB during night (10 pm-6 am). It clearly demonstrates that the noise levels are in close proximity or beyond the permissible limit. Though the average noise intensities at various commercial and industrial places are within the permissible limit, the Lmax noise values are more than the permissible limit. Analysis of variance is also computed for different residential, commercial and industrial places to infer the level of significance. Source


Mohapatra H.,Kaptipada College | Goswami S.,Ravenshaw University
Journal of Environmental Biology | Year: 2012

The present article deals with soil analysis around five opencast coal projects of lb river coalfield during pre-monsoon (March), monsoon (July) and post monsoon (November) periods of successive three years (i.e., 2006,2007 and 2008). Sampling of soil has been done from the vertical surface of the overburden at successive depths of 0-5 if, 5-10 ft and at 1 0-15ft. The different physical (soil texture, soil moisture, particle density, bulk density and porosity) and chemical (pH, organic carbon, nrogen, phosphorus and potassium) parameters have been analysed. The soil textures of the study area are found to be loamy sand to loam, loam to silty loam and clay loam to silty clay loam in the depth of 0-5 if, 5-10 if and at 10-15 if, respectively The moisture content (7.297 at 0-5ff, 5.25 at 5-10 ft and 4.1 34%at 10-15 if) and porosity (43.994 at 0-5if, 40.682 at 5-10 if and 35.85%at 10- 15ff) of the soil in the study area decreased gradually from the surface to greater depth. However, the particle density (2.639 at 0-5ft, 3.11 at 5-10 if and 3523 g cc1 at 10-1 5ff) and the bulk density (1.478 at 0-Sft, 1.839 at 5- 10 if and 2.269 g cc-1 at 10-15 if) in this region increased from surface to the deeper region of the soil. The organic carbon (1.367 at 0-5ft, 0.9 at 5-10 if and 0.396 kg ha-1 at 10-15 if), nitrogen (2.845 at 0-5if, 1.059 at 5-1 Oft and 0.48 kg ha-1 at 10-1 5ff) and phosphorus level (1.11 at 0-5ft, 0.715 at 5-10 ft and 0.679 kg ha-1 at 10-15 ft) ofthe soil decreased with increasing depth of the soil. However, the content of potassium (2.636 at 0-Sft, 4.374 at 5-1 Oft and 5.82 kg ha-1 at 10-15 ft) increased gradually from the surface to the greater depth. Analysis of variance is computed to inferthevariation in the concenfration of parameters in different opencast coal projects and in various depths of the study area. © 2012 Triveni Enterprises. Source


Goswami S.,Ravenshaw University | Swain B.K.,Utkal University | Mohapatra H.P.,Kaptipada College | Bal K.K.,Meteorological Center
Journal of Environmental Biology | Year: 2013

A preliminary assessment of noise levels during Deepawali, was made in the present study. In order to assess the situation of noise levels in and around Balasore during two consecutive Deepawali of the year 2010 and 2011; noise monitoring was carried out in three different specified times (4:30-7:00 p.m., 7:00-10:30 p.m., 10:30 p.m.-l:00 a.m.). Noise descriptors such as L10, L50, L90, Leq, noise pollution level and noise climate were assessed to reveal the extent of noise pollution in this festival of crackers. Permissible limit of noise levels (L) prescribed by WHO during the festival was 100 dB and Lmax must not exceed 110 dB during such occasion. However, in all the cases Lmax and NPL values exceeded 110 dB, while Leq values ranged from 92.9 to 101.9 dB during 2010 Deepawali and 81.5 to 100.8 dB during 2011 Deepawali. On the other hand, all the noise monitoring sites belonged to residential areas. The assessed noise levels during such festivity are much more than 55/45 dB i.e. prescribed for residential areas for day/night time by CPCB. However, it was observed that the noise of Deepawali (Leq) decreased considerably and was less during 2011 than 2010. These may be due to increased environmental awareness among the public. Subsequently, the people of Balasore prefered to celebrate Deepawali, the festival of lights without sound and smoke. Noise policy should also be worked out for a better understanding of such local, social and cultural festivals in which annoyance arise. © Triveni Enterprises, Lucknow (India). Source


Mohapatra H.,Kaptipada College | Goswami S.,Ravenshaw University | Dey D.,Udala College
Journal of Environmental Biology | Year: 2010

The miners as well as the inhabitants vicinity to the mining areas are generally susceptible to the respiratory disorders due to constant exposure to the coalmine dust for a prolonged period. In this paper, the dust concentration and dust dose associated with the rate of tubercutosis around the major part of lb Valley Coalfield (Belpahar and Brajarajnagar area) have been analysed. Several field trips around lb Valley Coalfieldhave been conductedfor consecutivelythree years (2005, 2006 and 2007) to evaluate the present status ofthe dust concentration and rate of tuberculosis infection. It was observed that the dust concentrations of different residential places as well as the places vicinity to the opencast mining projects have been increased in the subsequent years of investigation. As a result, the dust doses olvarious residentialplaces have also increased in a parallelmanner. The dust doses of various mining sites range from 25.51 to 37.08 mg 34.76 to 41.03 Mmg and 37.8 to 44.49 mg during 2005, 2006 and 2007 respectively. Interestingly, in most of them mining site the dust doses are more than the safe dust does (32 mg). An attempt has been made to correlate the dust concentration with tuberculosis infection in the area by making a questionnaire survey. Early symptoms of tuberculosis were reported in case of 121 out of 205, 129 out of 212 and 145 out of 220 inhabitants during 2005, 2006 and 2007 respectively. The study clearly revealed that the tuberculosis patients have been increased significantly in the successive years of investigation. © Triveni Enterprises, Lucknow (India). Source


Mohapatra H.,Kaptipada College | Goswami S.,Kaptipada College
Journal of Environmental Biology | Year: 2012

Heavy earth moving machineries, different capacities of dumpers and loaders, blasting and drilling make the mining environment noisy. A study was carried out to assess the noise level in different opencast projects in and around Belpahar and Brajarajnagar areas of Ib river coalfield. Noise assessment was carried out in various residential, commercial and industrial places. The noise levels, especially Leq values of different wheel loaders, dumpers, shovel and crusher units were also assessed and were more than permissible limit (90dB) in some of their operating conditions. Sound ressure level measurements while drilling into coal and overburden at Lakhanpur opencast project yielded noise levels (Leq) of 81.33 to 96.2 dB. Thus, these Leq values of drilling machines in most of the operating conditions were above permissible limit. The average noise intensities (6 a.m.-10 p.m.: 51.6-60.875dB and 10 p.m.-6 a.m.: 42.6-49.8dB) and Leq values (6 a.m.-10 p.m.: 50.9-67.0dB and 10 p.m.-6 a.m.: 40.8-53.3dB) during both day and night time of the residential areas around the Ib river coalfield were in close proximity or beyond the permissible limit. The Leq values at some of the commercial and industrial places were beyond (6 a.m.-10 p.m.: 61.6-88.3 dB and 10 p.m.-6 a.m.: 55.4- 64.8dB) permissible limit. However, in most of the cases, the Lmax noise values were more (6 a.m.-10 p.m.: 68.5-91.4 dB and 10 p.m.-6 a.m.: 69.3-76.4dB) than the permissible limit. Analysis of variance was also computed for heavy earth moving machineries in different operating conditions and also for different residential, commercial and industrial places to infer the level of significance. The difference of noise intensity produced by different wheel loaders at Lakhanpur and Lilari opencast projects, drilling machines at Lakhanpur opencast project, 50 tons capacity dumpers at various conditions of Ib river coalfield within the same operating condition was significant at both 5% and 1% levels of significance. Similarly, the variance of estimated noise level in residential places during day time and commercial and industrial places during day and night time was significant at both 5% and 1% levels of significance. Moreover, a preliminary survey adopting questionnaire method amongst the mine workers and local inhabitants was also carried out to evaluate their perception about the mining related noise. © 2012 Triveni Enterprises. Source

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