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Nigeria's free digital learning hub. Videos, lecture notes, practice questions and leaderboards aligned with CCMAS, NBTE, NCCE, WAEC, NECO, IJMB and JAMB curricula.
Environmental Health Science · 400 Level
This is the complete lecture note for EVM 412 Environmental Management Systems, prepared for Environmental Health Science students at 400 Level. You can read it online below, open it in the full viewer, or download the PDF for offline study. It pairs with the course's video lectures, so you can read and watch together.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Series 1 Course code: EVM412 Course title: Environmental Management Systems Course credit load: 3 Units List of Series: Series 1: Organizational Environmental Impacts and Responses Series 2: Application of Environmental Management Systems (EMS) Series 3: Standardized Environmental Management Systems Overview Series 4: EMS Frameworks: BSI 7750, EMAS, and ISO 14001 Series 5: Core Elements of Environmental Management Systems Series outline for Series 1: Organisational Environmental Impacts and Responses Part 1.1: Understanding Organisational Environmental Impacts o 1.1.1 Types of Environmental Impacts o 1.1.2 Sources of Environmental Impacts in Organisations o 1.1.3 Measuring and Categorising Impacts Part 1.2: Drivers of Organisational Environmental Responses o 1.2.1 Regulatory and Legal Drivers o 1.2.2 Economic and Market Drivers o 1.2.3 Social and Ethical Drivers Part 1.3: Strategies for Environmental Response o 1.3.1 Pollution Prevention and Control o 1.3.2 Resource Efficiency and Sustainable Practices o 1.3.3 Corporate Social Responsibility (CSR) Initiatives Part 1.4: Tools and Techniques for Managing Impacts o 1.4.1 Environmental Audits o 1.4.2 Environmental Performance Indicators o 1.4.3 Life Cycle Assessment
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Part 1.5: Case Studies of Organisational Responses o 1.5.1 Success Stories in Environmental Management o 1.5.2 Lessons from Poor Environmental Practices Introduction Every organisation, regardless of its size or sector, interacts with the environment in ways that can either sustain or degrade natural systems. From energy consumption and waste generation to emissions and resource extraction, these impacts are increasingly scrutinised by regulators, communities, and markets. Understanding how organisations affect the environment, and how they respond to these challenges, is a critical foundation for environmental management. The aim of this Series is to equip you with the knowledge and skills to identify organisational environmental impacts and to evaluate the responses that organisations adopt to manage them effectively. We shall commence this Series by examining the different types and sources of environmental impacts within organisations. Next, we will explore the drivers that influence organisational responses, including regulatory, economic, and social pressures. Following that, we will analyse strategies such as pollution prevention, resource efficiency, and corporate social responsibility. Afterwards, we will consider tools and techniques like environmental audits, performance indicators, and life cycle assessments. Finally, we will wrap up with case studies that highlight both successful and unsuccessful organisational responses to environmental challenges. Series Learning Outcomes Upon completing this Series, you should be able to: SLO 1.1 define the main types and sources of organisational environmental impacts, SLO 1.2 explain the regulatory, economic, and social drivers of organisational environmental responses, SLO 1.3 analyse strategies such as pollution prevention, resource efficiency, and corporate social responsibility, SLO 1.4 demonstrate the application of tools and techniques for managing environmental impacts, and SLO 1.5 evaluate case studies of organisational responses to environmental challenges.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS 1.1 Understanding Organisational Environmental Impacts 1.1.1 Types of Environmental Impacts Organisations generate environmental impacts, which are measurable changes in the natural environment caused by their activities. These impacts can be direct, such as emissions from a factory, or indirect, such as energy consumed in office buildings. The main types of environmental impacts include: Air pollution, the release of harmful gases such as carbon dioxide, sulphur dioxide, and nitrogen oxides into the atmosphere. Water pollution, contamination of rivers, lakes, or oceans through industrial effluents, chemicals, or waste materials. Soil degradation, the decline in soil quality due to improper waste disposal, chemical spills, or unsustainable farming practices. Resource depletion, the excessive use of non-renewable resources such as fossil fuels, minerals, and groundwater. Loss of biodiversity, the reduction of plant and animal species caused by habitat destruction or alteration. Fill in the blank: The contamination of rivers, lakes, or oceans through industrial effluents is known as __________. 1.1.2 Sources of Environmental Impacts in Organisations The sources of environmental impacts are the specific organisational activities that give rise to measurable changes in the environment. Identifying these sources is essential for effective environmental management. Key sources include: Production processes, which involve raw materials, energy, and chemicals, leading to emissions, waste, and effluents. Energy consumption, particularly from non-renewable sources such as coal, oil, and natural gas, which contributes to greenhouse gas emissions. Transportation and logistics, the movement of goods and people that generates emissions and consumes fuel. Waste generation, from packaging, office operations, and industrial by-products, which can pollute if not properly managed. Supply chain activities, where upstream and downstream partners may engage in practices that indirectly affect the environment.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Fill in the blank: The use of coal, oil, and natural gas in organisations contributes to __________ emissions. 1.1.3 Measuring and Categorising Impacts To manage environmental impacts effectively, organisations must measure and categorise them. Measurement involves quantifying the extent of an impact, such as calculating carbon emissions or the volume of waste generated. Categorisation involves grouping impacts into meaningful categories for analysis and response. Common approaches include: Quantitative measurement, using numerical data such as tonnes of carbon dioxide emitted or litres of water consumed. Qualitative assessment, describing impacts in terms of severity, frequency, or potential risk. Categorisation by environmental medium, such as air, water, soil, or biodiversity. Categorisation by organisational activity, such as production, transport, or waste disposal. Fill in the blank: Grouping impacts into meaningful categories for analysis and response is known as __________. Short description: Diagram showing types of environmental impacts, their organisational sources, and methods of measurement and categorisation. Figure 1.1 Overview of organisational environmental impacts
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Pilot questions 1.1 1. Define environmental impacts and give two examples. 2. Identify one organisational activity that contributes to greenhouse gas emissions. 3. Explain the difference between quantitative measurement and qualitative assessment of environmental impacts. 4. List three types of environmental impacts that organisations commonly generate. 5. What is meant by categorisation by environmental medium? Provide one example. 1.2 Drivers of Organisational Environmental Responses 1.2.1 Regulatory and Legal Drivers Organisations are often compelled to respond to environmental issues due to regulatory and legal drivers, which are laws, policies, and standards established by governments and international bodies. These regulations set limits on emissions, waste disposal, and resource use, and they require organisations to comply or face penalties. Examples include environmental protection acts, emission standards, and waste management regulations. Fill in the blank: Laws and policies established by governments that compel organisations to manage their environmental impacts are known as __________. 1.2.2 Economic and Market Drivers Another important influence comes from economic and market drivers, which refer to financial incentives, competitive pressures, and consumer demand. Organisations may adopt environmentally friendly practices to reduce costs, improve efficiency, or gain a competitive advantage. For instance, energy-efficient technologies can lower operational expenses, while eco-friendly products can attract environmentally conscious customers. Fill in the blank: When organisations adopt environmentally friendly practices to reduce costs and attract customers, they are responding to __________ drivers. 1.2.3 Social and Ethical Drivers Beyond laws and markets, organisations also respond to social and ethical drivers, which are pressures from communities, advocacy groups, and societal expectations. These drivers encourage organisations to act responsibly, protect ecosystems, and demonstrate accountability. Ethical considerations, such as fairness to future generations and respect for biodiversity, often motivate organisations to go beyond compliance and embrace sustainability.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Fill in the blank: Pressures from communities and advocacy groups that encourage organisations to act responsibly are known as __________ drivers. Box 1.2 Key drivers of organisational environmental responses Short description: Box summarising regulatory/legal, economic/market, and social/ethical drivers. Pilot questions 1.2 1. Define regulatory and legal drivers and give one example. 2. Explain how economic and market drivers can influence organisational environmental practices. 3. Identify one benefit organisations gain from adopting energy-efficient technologies. 4. What role do social and ethical drivers play in shaping organisational responses? 5. Provide one example of a social or ethical pressure that encourages organisations to act sustainably. 1.3 Strategies for Environmental Response 1.3.1 Pollution Prevention and Control One of the most common strategies is pollution prevention and control, which involves reducing or eliminating pollutants before they are released into the environment. This may
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS include cleaner production methods, waste minimisation, and the use of filters or scrubbers to capture emissions. Prevention is often more cost-effective than remediation. Fill in the blank: Reducing or eliminating pollutants before they are released into the environment is known as __________. 1.3.2 Resource Efficiency and Sustainable Practices Organisations also adopt resource efficiency and sustainable practices, which focus on using resources more effectively and reducing waste. Examples include recycling, energy conservation, and adopting renewable
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