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Prediction and Examination of Seasonal Variation of Ozone with Meteorological parameter Through Artificial Neural Network(Urban Climate)
(Navneet Kumar, Anirban Middey and Padma S. Rao,20,,148-167,Year : 2017)
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The present study focused on seasonal relations and predictions of the ozone (O3) coupled with NO2 and meteorology. Monitoring of ozone concentration throughout year shows an increasing trend during summer and a decreasing trend in the winter season. A comparison between three types of ANN; multilayer perceptron trained (MLP) with back-propagation, radial basis functions (RBF) and generalized regression neural network (GRNN) for short prediction of ozone are conclusively demonstrated. The model results are validated with observations from next monsoon. Based on the model's performance, the MLP back propagation model gives the best correlation between observed and predicted ozone concentrations than other models. Performance assessment parameters considered in the study also indicates that MLP is the best-fit model for prediction of ozone concentration throughout the year
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Particulate and Gases Pollution Control during Ldling Condition of Vehicles at Traffic Intersections: A Case Study for Nagpur City(Earth Sciences)
(Navneet Kumar, Rajendra Prasad Poluru, Padma S. Rao, Mayuri Shrirang, Ashish P. Patil,,,,Year : 2017)
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Traffic intersections are major contributors for built-up of emissions of air pollutants like PM10, PM2.5, SO2 and NOx from automobiles. The study has been carried out for Nagpur, third largest city in the Indian state of Maharashtra. Emissions of PM10, PM2.5, SO2 and NOx quantified for one month, and control studies from motor vehicles during idling condition at a traffic signal were carried out at three foremost traffic signals of the city. The selected traffic intersections are Law College Square, Medical Square, and Shankar Nagar square. In this study selected parameters Air Metrics measured PM10 PM2.5 SO2 and NOx and followed by titrimetric gaseous impinger system and control of the same assessed by bench scale air pollution control (BAPC) system. Reduction percentages from the BAPC system were obtained as 57.68 & 47.65 for PM10 and PM2.5 respectively whereas for SO2, 70.55 and for NOx, 54.53 obtained
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Air Quality Index - A Comparative Study for Assessing the Status of Air Quality(Engineering and Technology)
(Shivangi Nigam, B. Padma S. Rao, N. K. Mandal, N Kumar, and C. Chauhan,06,No. 02,,Year : 2016)
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Air quality Index is a tool for identify the present scenario of air quality. Six different methods of estimating Air quality Index (AQI) based on four pollutants synergistic effect viz., PM10, PM2.5, SO2 and NO2 were used to compare the prevailing ambient air quality in the study region. The average concentration of PM10, PM2.5, SO2 and NO2 are in 82.59, 61.61, 27.19 and 3.92 μg/m3 in was observed in May June respectively. Similarly the levels in June-July 2014 were observed as 57.96, 43.27, 14.24 and 2.54 μg/m3 respectively while the concentration in July-August 2014 were found as 39.37, 32.89, 10.44 and 2.92μg/m3 respectively, in August-September 2014 were 30.08, 32.53, 12.18 and 2.90 μg/m3 respectively and the levels in Sept-Oct 2014 were found as PM10, PM2.5, SO2 and NO2 are in 93.66, 94.04, 23.39 and 6.85 μg/m3 respectively. Seasonal and daily AQI calculation revealed that air quality status in the study region under various classes ranging from good, moderate, satisfactory and unacceptable class for different AQI calculation.
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Real time Ambient Air Quality Status During Diwali Festival in Central, India(Environment Science)
(Shivangi Nigam, B. Padma S. Rao, N. K. Mandal, N Kumar, and C. Chauhan, V.A. Maishlkar, P. N. Mishra,05,Issue 3/4,,Year : 2016)
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In India, festivals are celebrated with lot of enthusiasm and Diwali is the major festival of light. In this festival, houses are illuminated by lights and sky is illuminated by fireworks. These fireworks though create lot of amusement but also pollute the atmosphere in terms of air pollution. The continuous air pollution monitoring was undertaken during Diwali festival (2014) at residential site NEERI, Nagpur. Air quality parameters were compared with CPCB standard. On Diwali day, PM 10 and PM 2.5 concentration achieve its highest value of 900 µg/m 3 and 950 respectively µg/m 3. This high concentration is maintained in atmosphere for two days of this festival in atmosphere which is approximately 8-9 times more than that regulatory standard. These particles carry all the components of the cracker including heavy metals, alkali metals, alkaline earth and change the atmosphere with positive and negative ions apart from impaction of sulfur and other acid gases to the atmosphere.
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