Abstract:The drinking water quality (underground water) of Bareilly city has been assessed by estimating physicochemical parameters and calculating Water Quality Index (WQI). Water Quality Index plays an important role in interpreting the information on water quality. The WQI of different sites shows that drinking water is of good quality. The correlation between different parameters was also estimated. During course of study the average value of physico-chemical parameters studied were observed as temperature 20.17 o C, turbidity 2.17 NTU, pH 8.13, electrical conductivity 1360 mmhos/cm, total dissolved solids 1218.9 mg/l, total hardness 515.0 mg/l chlorides 106.34 mg/l, alkalinity 342.15, fluorides 0.44 mg/l, sulphates 84.68 mg/l, nitrates 22.83 mg/l, DO 2.44 mg/l, BOD 1.26 mg/l. While average MPN were observed as 5.66 and average WQI as 21.48.

The influence of metals (Pb and Zn) was investigated using plant growth as stress indicators. Spinach plant was treated with various concentrations of Pb and Zn (2, 5, 10 50, 100 and 200 mM). Lead has a stimulating effect upto 5mM concentrations whereas, zinc was find to promote the growth upto 10mM level. Overall, a negative correlation was found between metal concentration and chlorophyll, carbohydrate, nitrogen and protein content of the plant.

The effect of carbamine insecticide on the productivity parameters of the Pisum sativum have been studied. The insecticide has decreased the photosynthetic pigments for all the concentrations. Nitrogen and protein content has initially decreased upto 14 days treatment period and has further increased during last 7 days. The soil nutrients (nitrate, sulphate & phosphate) have also decreased for all the concentration of the insecticide.

Environmental pathway analysis provides the link between qualification of source emissions and assessments of receptor exposure (eg. human exposure) through estimation of the ambient concentrations of contaminants in the various environmental media.Two basic techniques can be employed to investigate environmental pathways: analytic sampling programs & mathematical fate modelling. Sampling programs are costly to design & implement, therefore, computerized mathematical models of environmental processes are frequently used to generate information unavailable by other means or to estimate data (i.e. environmental conc.) that would otherwise be costly to obtain.

Abstract:Interactions between mathematical and biological sciences have been increasing rapidly in recent years. The use of system analysis and mathematical model for formulation and solving the environmental pollution is of relatively recent vintage and has been used widely since last three decades. These models can be used to conduct numerical experiments, test hypothesis and help to understand the response of environmental pollution. A mathematical model acts as a bridge between study of mathematics and application of mathematics in environment and other fields. Modeling is an abstraction of reality and its ultimate objective is to explore the complexity of functions and structure of the system under study. Today, a wide variety of models belonging to different nature and category are available to understand the processes of the environment around us. Various models such as WASP, CE-QUAL-ICM, QUAL W2, AQUATOX, QUAL2K, IITAQ, PEARL, GRAM, UGEM, and IITLT etc. related to water and air quality are developed so far along with their principles, intended use and applications. These models generally simulate the basic physical, chemical and biological processes. In the present study, an attempt has been made to evaluate the concept and utilization of mathematical models in air and water quality management.