Hydrochemical Evaluation of Water Quality and Trophic State Status of Saheb Bandh Lake, Purulia

Saheb bandh lake is an important wetland ecosystem of Purulia district and is well known for its biological diversity, aesthetic beauty, recreation and multipurpose features. In the present study an attempt is made to evaluate water quality as well as trophic state status of the lake. Lake water is mostly of Mg-HCO3 type. Relationship between different ionic ratios indicates that weathering of silicate minerals is generally considered to be the major source of alkalis in the lake water. Regarding drinking and irrigation water suitability criteria all the samples are moderately suitable. According to United States Salinity Laboratory (USSL) classifications lake water falls in medium salinity – low sodium category. Trophic State Index (TSI) indicates that the eutrophic nature exhibit in this lake.  The ratio of total nitrogen and total phosphorus reflects that the lake is phosphorus dominant in respect of nutrient.

IPA-Open access -Distributed under Creative Commons Attribution License 2.0 Environmental noise assessment and its effect on human health in an urban area

ABSTRACT Traffic noise is a major environmental source of pollution in the whole planet, both in developed and in developing nations. The present study focuses on the traffic noise assessment and its negative health effect on road side residents. Five different locations were selected along a National Highway of Burdwan having a day time L eq level of 60 to 89.5 dBA. Evaluation of various noise descriptors such as L 10 , L 50 , L 90 , L eq , L NP and TNI showed that people of the study area got suffered from slight uncomfortable feeling to a position of noise annoyance. Assessment of health effects among the 52 peoples of 10 families residing in the study areas for long time was conducted through a questionnaire based survey. Responses from the people were collected for analysis and the outcome revealed that 53%, 36%, 40% of people were suffered from headache, anxiety and high blood pressure whereas 36%, 15%, 67% and 61% of people were suffered from hearing disability, cardiovascular diseases, irritability and insomnia respectively. Chi-Square test was conducted among the different physiological and psychological effects and it was found that noise has a significant (α = 0.05) effect on hearing loss, sleep disturbances, abnormal heart beat and speech communication problem

Calcinosis cutis secondary to facial acne vulgaris: A rare complication

Acne vulgaris is a common dermatological disease commonly affecting the adolescent and young adults. It is characterized by the presence of pleomorphic skin lesions such as comadones, papules, pustules, and nodules. The common complications are postacne hyperpigmentation and scarring causing psychological impact. Calcinosis cutis is the pathologic deposition of insoluble calcium salt in the skin and subcutaneous tissue. Calcinosis cutis following acne vulgaris is rarely reported in the literature. We report a case of calcinosis cutis in acne vulgaris in a 55-year-old man

Assessment of groundwater potential zones using multi-influencing factor (MIF) and GIS: a case study from Birbhum district, West Bengal

Abstract Remote sensing and GIS play a vital role in exploration and assessment of groundwater and has wide application in detection, monitoring, assessment, conservation and various other fields of groundwater-related studies. In this research work, delineation of groundwater potential zone in Birbhum district has been carried out. Various thematic layers viz. geology, geomorphology, soil type, elevation, lineament and fault density, slope, drainage density, land use/land cover, soil texture, and rainfall are digitized and transformed into raster data in ArcGIS 10.3 environment as input factors. Thereafter, multi-influencing factor (MIF) technique is employed where ranks and weights, assigned to each factor are computed statistically. Finally, groundwater potential zones are classified into four categories namely low, medium, high and very high zone. It is observed that 18.41% (836.86 km2) and 34.41% (1563.98 km2) of the study area falls under ‘low’ and ‘medium’ groundwater potential zone, respectively. Approximately 1601.19 km2 area accounting for 35.23% of the study area falls under ‘high’ category and ‘very high’ groundwater potential zone encompasses an area of 542.98 km2 accounting for 11.95% of the total study area. Finally, the model generated groundwater potential zones are validated with reported potential yield data of various wells in the study area. Success and prediction rate curve reveals an accuracy achievement of 83.03 and 78%, respectively. The outcome of the present research work will help the local authorities, researchers, decision makers and planners in formulating better planning and management of groundwater resources in the study area in future perspectives