scholarly journals Assessment of Phenolic Compounds in the Surface Waters of Godavari Canal, Andhra Pradesh, India

2015 ◽  
Vol 10 (1) ◽  
pp. 338-342 ◽  
Author(s):  
P Kumar ◽  
M Pacha

The present study was intended to determine the concentrations of phenolic compounds in surface waters of Godavari canal by molecular spectrophotometry. Samples were collected from fifteen sampling stations using grab sampling method for a period of four months (from November to February) at 10 day intervals. Total phenols in water samples were determined using molecular spectrophotometry after distillation, complexation with 4-aminoantipyrine and extraction into chloroform. The concentration of phenolic compounds was reported in the range of 80-179 mg/lit, well within the limits considering the earlier reports in the literature and the standards prescribed by Central Pollution Control Board (CPCB) of India. Relatively higher levels of phenolic compounds (100-179 mg/lit) were reported in nine out of fifteen sampling locations. Statistical analysis showed that there is a significant difference in the concentrations of phenolic compounds in the month of November with respect to January (at p = 0.05) and November with respect to February (at p < 0.05).

2018 ◽  
Vol 64 (4) ◽  
pp. 645-663 ◽  
Author(s):  
Prakash Chand

Since independence, Indian policymakers have attempted to address environmental problems by passing a number of rules and regulations as per the vision of the constitution and in response to the requirement of time. However, due to the prevalent poverty and the developmental compulsions of the nation, environment and its protection was not a priority of the government till the end of the 1960s. But, the 1972 Stockholm Conference on Human Environment brought a marked shift in India’s approach to environmental issues. The conference proved to be a turning point in India’s perception on environment and facilitated the creation of the National Committee on Environmental Planning and Co-ordination (NCEPC) in 1972. The NCEPC triggered a rise in environmental legislation, beginning with the Water (Prevention and Control of Pollution) Act of 1974, which provided for the creation of Pollution Control Boards for the control of water pollution at national and state levels and empowered them to enforce the law. The boards were later empowered to deal with air pollution by Air (Prevention and Control of Pollution) Act of 1981 and acted as regulatory mechanisms to environmental protection. This article primarily deals with the role of the Central Pollution Control Board as a regulatory authority to environmental protection and regulations in India.


2012 ◽  
Vol 65 (11) ◽  
pp. 2049-2054 ◽  
Author(s):  
Erik Johannessen ◽  
Arild Schanke Eikum ◽  
Tore Krogstad

More than 1,600 prefabricated on-site wastewater treatment plants are in operation in the Morsa watershed in Norway. As of 2010 a monitoring program on the performance of these plants is in effect. Sampling methods for wastewater treatment plants is discussed, and different methods are compared. The study includes six different plant models, of which all are prefabricated package plants. The parameters investigated were total phosphorus (Tot-P), orthophosphate (PO4-P) and suspended solids (SS). Diurnal curves showed no apparent repetitive variation over 24 h intervals, indicating good equalization and robust design to compensate for highly variable loadings. A comparison of grab samples and time proportional composite samples showed almost identical average values, and a paired two-tailed Student's t-test indicates no statistically significant difference between the sampling methods. The results indicate that equivalent results should be expected irrespective of sampling method, and, as composite sampling is attributed to much higher costs, it is recommended that grab sampling should be used when a large number of plants are evaluated.


2020 ◽  
Vol 21 (3) ◽  
pp. 177-185
Author(s):  
P. Chaturvedi ◽  
Kajal S. Rathore ◽  
Mayank Chaturvedi ◽  
Shiv Om Singh

The aim of present study was to compare the air quality before and during lockdown due to COVID-19 pandemic at selected metro cities of India (Delhi, Kolkata, Bangalore, and Mumbai). The data of the selected parameters (Particulate Matter having diameter equal to or less than 2.5micron (PM2.5), Particulate Matter having diameter equal to or less than 10micron (PM10), Nitrogen oxides (NO2), Ammonia (NH3), Sulphur oxides (SO2) Carbon monoxides (CO), and Ozone (O3) for the present study was collected from the official website of Central pollution Control Board (CPCB) and analyzed by calculating mean, standard deviation, total variance, and correlation coefficient. Dendrogram analysis was also performed site wise. The concentration of all the parameters except ozone was found highest at Delhi among all the sites. Ozone values were found highest at Bangalore. A strong correlation was observed between PM10 and PM2.5 at all the sites during the study period. A great change in the values of all the studied parameters was observed before and during the lockdown periods. In metro cities values of PM2.5 was found higher than PM10 except at Bangalore where values of PM2.5 was found lower than PM10. Among all the studied metro cities, Delhi was found highly polluted before and during the lockdown period while Bangalore was found least polluted.


2019 ◽  
Vol 7 (5) ◽  
pp. 1231-1237 ◽  
Author(s):  
Gulbir Singh ◽  
Gautam Kumar ◽  
Vivek Bhatnagar ◽  
Animesh Srivastava ◽  
Kumari Jyoti

Purpose of Study: In this age where population and industrialization have extended exponentially, contamination is a noteworthy emergency looked by humanity and essential measures ought to be taken to control it quickly. High levels of pollutants in the atmosphere, which are responsible for causing pollution that causes human heart problems, breathing and other all health problems to our society. This paper focused to provide a substantial solution to pollution in our society as a result of which major social, personal health and environmental pollution problems can be monitored and by taking effective steps they can be reduced. Methodology: The proposed framework is an IOT unit for handling these issues, including powerful use of the different sensor, to capture the estimations of various sorts of toxins in the earth and show insights on a site which can be gotten to by all clients for nothing. The research data is collected from the different sensors installed at different locations in our surroundings. After collecting data from sensors, a comparative study of data is carried out with the standards provided by the Central Pollution Control Board (CPCB). Results: The proposed system helps to reduce the pollution in our environment and as a result of which pollution can be reduced by taking major steps towards it. Application/Implications: The framework we are proposing is a propelled answer for observing the ecological contamination at a specific spot and make data available for each person. Novelty/originality of the study: Our proposed system ensures that pollution which ultimately causes health, environmental and other social problems can be tracked from time to time and each and every person in the society can track and check pollution level in their surroundings.  


2021 ◽  
Vol 23 (05) ◽  
pp. 515-525
Author(s):  
SK Singh ◽  
◽  
Vasudev Kapoor ◽  
Karan Siriya ◽  
Mehak Vashisth ◽  
...  

Due to urbanization and industrialization huge amount of wastewater is being generated, which is causing water pollution. Nowadays water pollution is a serious problem. The present study has been carried out to evaluate the efficiency of a waste water treatment plants with Extended Aeration Sludge Process (EASP). This has been done by examining the various physiochemical characteristics of wastewater (BOD, COD, TSS & PO4), including a comparison of these characteristics at inlet and outlets of wastewater treatment plants and their variance over time. The examination of the competency of a technology is necessary for further optimization of the treatment units whilst complying with the Central Pollution Control Board (CPCB) requirements. In New Delhi’s Extended Aeration Plants are not working to their peak potential, but have still been able to treat the significant wastewater effectively. The study implies that the effluent released into the Yamuna River would not contribute to the river’s level of pollution.


2020 ◽  
Vol 10 (3) ◽  
pp. 53-72
Author(s):  
Rahul Krishna Kamble

Groundwater sampling was carried out by grab sampling method from 36 sampling locations from the Chandrapur district in three seasons i.e. winter, summer, and post-monsoon. The samples were analysed for physicochemical parameters and heavy metals i.e. iron and manganese. Data obtained from the study area was interpreted by using multivariate statistical analysis i.e. principal component analysis, cluster analysis, correlation matrix and one way ANOVA to ascertain source apportionment of these two heavy metals. The results of the multivariate analysis revealed that iron and manganese both were associated with the lithogenic source. Groundwater irons concentration was higher when compared with manganese and at a number of sampling locations it was above the stipulated standard of BIS (Bureau of Indian Standards) (0.3 mg/L).


2020 ◽  
Vol 72 (2) ◽  
pp. 133-170
Author(s):  
Subhrajyoty Roy ◽  
Debasis Sengupta ◽  
Kalyan Rudra ◽  
Udit Surya Saha

This article analyses various patterns in the pollution levels of [Formula: see text], [Formula: see text], [Formula: see text], and [Formula: see text] at various locations in Kolkata, India. Our analysis is based on a data set recorded by the Central Pollution Control Board of India and the West Bengal Pollution Control Board, comprising of about 15 years of irregular time series observations, due to the higher cost of precise and accurate measurements of pollution. We perform some exploratory analysis concerning the variations in trend, seasonal, and shift-specific seasonal levels. As well as a statistical model for forecasting pollution levels for two to three days in advance is also obtained, along with an analysis of the effects of festivities such as Kali Puja and Diwali on the level of the pollutants across different locations.


Author(s):  
Ms Charu Batra

Burning of crop residues released many pollutants, resulting in serious health hazards. This paper is an attempt to explore status of crop residues burning in Northwest India and its consequences on health in general and on child health in particular. An effort has also been made to find out the correlation between stubble burning and increasing incidence of acute respiratory infection (ARI) among children in Punjab. Finally an inventory of suggestions to curb this evil has also been prepared. Based on secondary sources, the data collected from various published studies, reports and NFHS, the present study found that residue burning resulted in the emission of greenhouse and various harmful gases. Such emission of harmful gases is many times higher than the standard level of gases as recommended by Central Pollution Control Board (CPCB). It has also been observed that the phenomenon of stubble burning is quite high in Punjab with comparison to other northwest Indian states resulting into increase in incidence of ARI among children.


MAUSAM ◽  
2021 ◽  
Vol 72 (4) ◽  
pp. 859-864
Author(s):  
PRAVAT RABI NASKAR ◽  
SHOBHIT KATIYAR ◽  
SOURISH BONDYOPADHYAY

This study has been carried out to find the groundwater quality of Burdwan district of West Bengal during pre-monsoon and post-monsoon. For this, the data of physicochemical parameters have been collected from Central Pollution Control Board (CPCB) website for the pre-monsoon and post-monsoon season for the year 2017. It is found that during the post-monsoon season, the water quality of all the stations falls in the category of excellent, and during the pre-monsoon season, the water quality of most of the stations is good.


2020 ◽  
Vol 66 (1) ◽  
pp. 81-93
Author(s):  
Shweta Srivastava ◽  
◽  
Gayatri Rai ◽  

Noise is generally defined as the unwanted sound produced by various natural or man-made sources such as construction, industrial, transportation activities etc. Noise can have many adverse effects such as hearing impairment, sleep disturbance, interference with speech and communication, reduced performance, annoyance and harming physiological functions. In India, the permissible noise level for different areas is laid down by Central Pollution Control Board (CPCB). Lucknow city, one of the major urban centres of Uttar Pradesh, has a population around 28 lakh according to Census, 2011. This huge number of people contributes significantly in the increasing levels of noise and, therefore, creates an alarming state of noise pollution. This paper aims to study the growing noise level trends in the city, analyse the average sound levels to ascertain the status of ambient noise levels and recommend suitable preventive measures. The data used for substantiation has been drawn from the reports of Central Pollution Control Board (CPCB) and Uttar Pradesh Pollution Control Board (UPPCB). Microsoft Excel software has been used for tabulation and graphical representation of data while ArcGIS 10.3 software has been used for the cartographical representation.


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