NTA UGC NET JRF - 89 environmental science-new updated syllabus

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SYLLABUS
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UNIVERSITY GRANTS COMMISSION
NET BUREAU
NET SYLLABUS
Subject : ENVIRONMENTAL SCIENCES Code No.: (89)
This syllabus contains ten units:
Unit-I: Fundamentals of Environmental Sciences
Unit-II: Environmental Chemistry
Unit-III: Environmental Biology
Unit-IV: Environmental Geosciences
Unit-V: Energy and Environment
Unit-VI: Environmental Pollution and Control
Unit-VII: Solid and Hazardous Waste Management
Unit-VIII: Environmental Assessment, Management and Legislation
Unit-IX: Statistical Approaches and Modelling in Environmental Sciences
Unit-X: Contemporary Environmental Issues

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Unit-I: Fundamentals of Environmental Sciences
Definition, Principles and Scope of Environmental Science.
Structure and composition of atmosphere, hydrosphere, lithosphere and
biosphere.
Laws of thermodynamics, heat transfer processes, mass and energy transfer
across various interfaces, material balance.
Meteorological parameters - pressure, temperature, precipitation, humidity,
mixing ratio, saturation mixing ratio, radiation and wind velocity, adiabatic
lapse rate, environmental lapse rate. Wind roses.
Interaction between Earth, Man and Environment. Biogeographic provinces
of the world and agro-climatic zones of India. Concept of sustainable
development.
Natural resources and their assessment. Remote Sensing and GIS: Principles
of remote sensing and GIS. Digital image processing and ground truthing.
Application of remote sensing and GIS in land cover/land use planning and
management (urban sprawling, vegetation study, forestry, natural resource),
waste management and climate change.
Environmental education and awareness. Environmental ethics.
Unit-II: Environmental Chemistry
Fundamentals of Environmental Chemistry: Classification of elements,
Stoichiometry, Gibbs’ energy, chemical potential, chemical kinetics,
chemical equilibria, solubility of gases in water, the carbonate system,
unsaturated and saturated hydrocarbons, radioisotopes.
Composition of air. Particles, ions and radicals in the atmosphere. Chemical
speciation. Chemical processes in the formation of inorganic and organic
particulate matters, thermochemical and photochemical reactions in the
atmosphere, Oxygen and Ozone chemistry. Photochemical smog.

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Hydrological cycle. Water as a universal solvent. Concept of DO, BOD and
COD. Sedimentation, coagulation, flocculation, filtration, pH and Redox
potential (Eh).
Inorganic and organic components of soils. Biogeochemical cycles –
nitrogen, carbon, phosphorus and sulphur.
Toxic chemicals: Pesticides and their classification and effects. Biochemical
aspects of heavy metals (Hg, Cd, Pb, Cr) and metalloids (As, Se). CO, O3,
PAN, VOC and POP. Carcinogens in the air.
Principles of analytical methods: Titrimetry, Gravimetry, Bomb Calorimetry,
Chromatography (Paper Chromatography, TLC, GC and HPLC), Flame
photometry, Spectrophotometry (UV-VIS, AAS, ICP-AES, ICP-MS),
Electrophoresis, XRF, XRD, NMR, FTIR, GC-MS, SEM, TEM.
Unit-III: Environmental Biology
Ecology as an inter-disciplinary science. Origin of life and speciation.
Human Ecology and Settlement.
Ecosystem Structure and functions: Structures - Biotic and Abiotic
components. Functions - Energy flow in ecosystems, energy flow models,
food chains and food webs. Biogeochemical cycles, Ecological succession.
Species diversity, Concept of ecotone, edge effects, ecological habitats and
niche. Ecosystem stability and factors affecting stability. Ecosystem services.
Basis of Ecosystem classification. Types of Ecosystem: Desert (hot and
cold), forest, rangeland, wetlands, lotic, lentic, estuarine (mangrove),
Oceanic.
Biomes: Concept, classification and distribution. Characteristics of different
biomes: Tundra, Taiga, Grassland, Deciduous forest biome, Highland Icy
Alpine Biome, Chapparal, Savanna, Tropical Rain forest.
Population ecology: Characteristics of population, concept of carrying
capacity, population growth and regulations. Population fluctuations,
dispersion and metapopulation. Concept of ‘r’ and ‘k’ species. Keystone
species.

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Community ecology: Definition, community concept, types and interaction -
predation, herbivory, parasitism and allelopathy. Biological invasions.
Biodiversity and its conservation: Definition, types, importance of
biodiversity and threats to biodiversity. Concept and basis of identification
of ‘Hotspots’; hotspots in India. Measures of biodiversity. Strategies for
biodiversity conservation: in situ, ex situ and in vitro conservation. National
parks, Sanctuaries, Protected areas and Sacred groves in India. Concepts of
gene pool, biopiracy and bio-prospecting. Concept of restoration ecology.
Extinct, Rare, Endangered and Threatened flora and fauna of India.
Concept of Industrial Ecology.
Toxicology and Microbiology: Absorption, distribution and excretion of
toxic agents, acute and chronic toxicity, concept of bioassay, threshold limit
value, margin of safety, therapeutic index, biotransformation. Major water
borne diseases and air borne microbes.
Environmental Biotechnology: Bioremediation – definition, types and role
of plants and microbes for in situ and ex situ remediation. Bioindicators,
Biofertilizers, Biofuels and Biosensors.
Unit-IV: Environmental Geosciences
Origin of earth. Primary geochemical differentiation and formation of core,
mantle, crust, atmosphere and hydrosphere. Concept of minerals and rocks.
Formation of igneous and metamorphic rocks. Controls on formation of
landforms - tectonic including plate tectonic and climatic. Concept of steady
state and equilibrium, Energy budget of the earth. Earth’s thermal
environment and seasons. Coriolis force, pressure gradient force, frictional
force, geo-strophic wind field, gradient wind. Climates of India, western
disturbances, Indian monsoon, droughts, El Nino, La Nina. Concept of
residence time and rates of natural cycles. Geophysical fields.
Weathering including weathering reactions, erosion, transportation and
deposition of sediments. Soil forming minerals and process of soil formation,
Identification and characterization of clay minerals, Soil physical and

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including India, radiative forcing and global warming. Impacts of large scale
exploitation of solar, wind, hydro and nuclear energy sources.
Unit-VI: Environmental Pollution and Control
Air Pollution:
Sources and types of Pollutants - Natural and anthropogenic sources,
primary and secondary pollutants. Criteria air pollutants. Sampling and
monitoring of air pollutants (gaseous and particulates); period, frequency
and duration of sampling. Principles and instruments for measurements of (i)
ambient air pollutants concentration and (ii) stack emissions. Indian National
Ambient Air Quality Standards. Impact of air pollutants on human health,
plants and materials. Acid rain. Dispersion of air pollutants. Mixing
height/depth, lapse rates, Gaussian plume model, line source model and area
source model. Control devices for particulate matter: Principle and working
of: settling chamber, centrifugal collectors, wet collectors, fabric filters and
electrostatic precipitator. Control of gaseous pollutants through adsorption,
absorption, condensation and combustion including catalytic combustion.
Indoor air pollution, Vehicular emissions and Urban air quality.
Noise Pollution:
Sources, weighting networks, measurement of noise indices (Leq, L10, L90,
L50, LDN, TNI). Noise dose and Noise Pollution standards. Noise control and
abatement measures: Active and Passive methods. Vibrations and their
measurements. Impact of noise and vibrations on human health.
Water Pollution:
Types and sources of water pollution. Impact on humans, plants and
animals. Measurement of water quality parameters: sampling and analysis
for pH, EC, turbidity, TDS, hardness, chlorides, salinity, DO, BOD, COD,
nitrates, phosphates, sulphates, heavy metals and organic contaminants.
Microbiological analysis – MPN. Indian standards for drinking water
(IS:10500, 2012). Drinking water treatment: Coagulation and flocculation,
Sedimentation and Filtration, Disinfection and Softening. Wastewater
Treatment: Primary, Secondary and Advanced treatment methods. Common
effluent treatment plant.

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Soil Pollution:
Physico-chemical and biological properties of soil (texture, structure,
inorganic and organic components). Analysis of soil quality. Soil Pollution
control. Industrial effluents and their interactions with soil components. Soil
micro-organisms and their functions - degradation of pesticides and
synthetic fertilizers.
Thermal, Marine Pollution and Radioactive:
Sources of Thermal Pollution, Heat Islands, causes and consequences.
Sources and impact of Marine Pollution. Methods of Abatement of Marine
Pollution. Coastal management. Radioactive pollution – sources, biological
effects of ionizing radiations, radiation exposure and radiation standards,
radiation protection.
Unit-VII: Solid and Hazardous Waste Management
Solid Waste - types and sources. Solid waste characteristics, generation
rates, solid waste components, proximate and ultimate analyses of solid
wastes.
Solid waste collection and transportation: container systems - hauled and
stationary, layout of collection routes, transfer stations and transportation.
Solid waste processing and recovery – Recycling, recovery of materials for
recycling and direct manufacture of solid waste products. Electrical energy
generation from solid waste (Fuel pellets, Refuse derived fuels), composting
and vermicomposting, biomethanation of solid waste. Disposal of solid
wastes – sanitary land filling and its management, incineration of solid
waste.
Hazardous waste – Types, characteristics and health impacts. Hazardous
waste management: Treatment Methods – neutralization, oxidation
reduction, precipitation, solidification, stabilization, incineration and final
disposal.

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chemical properties, soil types and climate control on soil formation, Cation
exchange capacity and mineralogical controls.
Geochemical classification of elements, abundance of elements in bulk earth,
crust, hydrosphere and biosphere. Partitioning of elements during surficial
geologic processes, Geochemical recycling of elements. Paleoclimate.
Distribution of water in earth, hydrology and hydrogeology, major basins
and groundwater provinces of India, Darcy’s law and its validity,
groundwater fluctuations, hydraulic conductivity, groundwater tracers, land
subsidence, effects of excessive use of groundwater, groundwater quality.
Pollution of groundwater resources, Ghyben-Herzberg relation between
fresh-saline water.
Natural resource exploration and exploitation and related environmental
concerns. Historical perspective and conservation of non-renewable
resources.
Natural Hazards: Catastrophic geological hazards - floods, landslides,
earthquakes, volcanism, avalanche, tsunami and cloud bursts. Prediction of
hazards and mitigation of their impacts.
Unit-V: Energy and Environment
Sun as source of energy; solar radiation and its spectral characteristics.
Fossil fuels: classification, composition, physico-chemical characteristics
and energy content of coal, petroleum and natural gas. Shale oil, Coal bed
Methane, Gas hydrates. Gross-calorific value and net-calorific value.
Principles of generation of hydro-power, tidal energy, ocean thermal energy
conversion, wind power, geothermal energy, solar energy (solar collectors,
photo-voltaic modules, solar ponds).
Nuclear energy - fission and fusion, Nuclear fuels, Nuclear reactor –
principles and types.
Bioenergy: methods to produce energy from biomass.
Environmental implications of energy use; energy use pattern in India and
the world, emissions of CO2 in developed and developing countries

9
and Control) Rules, 2000, Coastal Regulation Zones (CRZ) 1991 amended
from time to time.
National Forest Policy, 1988, National Water Policy, 2002, National
Environmental Policy, 2006.
Environmental Conventions and Agreements: Stockholm Conference on
Human Environment 1972, Montreal Protocol, 1987, Conference of Parties
(COPs), Basel Convention (1989, 1992), Ramsar Convention on Wetlands
(1971), Earth Summit at Rio de Janeiro, 1992, Agenda-21, Global
Environmental Facility (GEF), Convention on Biodiversity (1992),
UNFCCC, Kyoto Protocol, 1997, Clean Development Mechanism (CDM),
Earth Summit at Johannesburg, 2002, RIO+20, UN Summit on Millennium
Development Goals, 2000, Copenhagen Summit, 2009. IPCC, UNEP, IGBP.
Unit-IX: Statistical Approaches and Modelling in Environmental
Sciences
Attributes and Variables: types of variables, scales of measurement,
measurement of Central tendency and Dispersion, Standard error, Moments
– measure of Skewness and Kurtosis, Basic concept of probability theory,
Sampling theory, Distributions - Normal, log-normal, Binomial, Poisson, t,
2
and F-distribution. Correlation, Regression, tests of hypothesis (t-test, 2
-
test ANOVA: one-way and two-way); significance and confidence limits.
Approaches to development of environmental models; linear, simple and
multiple regression models, validation and forecasting. Models of population
growth and interactions: Lotka-Voltera model, Leslie’s matrix model.
Unit-X: Contemporary Environmental Issues
Global Environmental Issues – Biodiversity loss, Climate change, Ozone
layer depletion. Sea level rise. International efforts for environmental
protection.
National Action Plan on Climate Change (Eight National missions –
National Solar Mission, National Mission for Enhanced Energy Efficiency,
National Mission on Sustainable Habitat, National Water Mission, National
Mission for Sustaining the Himalayan Ecosystem, National Mission for a

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‘Green India’, National Mission for Sustainable Agriculture, National
Mission on Strategic Knowledge for Climate Change).
Current Environmental Issues in India: Environmental issues related to
water resource projects - Narmada dam, Tehri dam, Almatti dam, Cauvery
and Mahanadi, Hydro-power projects in Jammu & Kashmir, Himachal and
North-Eastern States.
Water conservation-development of watersheds, Rain water harvesting and
ground water recharge.
National river conservation plan – Namami Gange and Yamuna Action Plan.
Eutrophication and restoration of lakes. Conservation of wetlands, Ramsar
sites in India.
Soil erosion, reclamation of degraded land, desertification and its control.
Climate change - adaptability, energy security, food security and
sustainability.
Forest Conservation – Chipko movement, Appiko movement, Silent Valley
movement and Gandhamardhan movement. People Biodiversity register.
Wild life conservation projects: Project tiger, Project Elephant, Crocodile
Conservation, GOI-UNDP Sea Turtle project, Indo-Rhino vision.
Carbon sequestration and carbon credits.
Waste Management – Swachha Bharat Abhiyan.
Sustainable Habitat: Green Building, GRIHA Rating Norms.
Vehicular emission norms in India.
Epidemiological Issues: Fluorosis, Arsenocosis, Goitre, Dengue.
Environmental Disasters: Minnamata Disaster, Love Canal Disaster, Bhopal
Gas Disaster, 1984, Chernobyl Disaster, 1986, Fukusima Daiichi nuclear
disaster, 2011.

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