EIALife-cycle13.07(Gajaseni, 2007) 1 Environmental Auditing.
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Transcript of EIALife-cycle13.07(Gajaseni, 2007) 1 Environmental Auditing.
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Environmental AuditingEnvironmental Auditing
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Environmental Auditing
• Is a management tool with the aim of helping to safeguard environment.
• Is a method of examination of environmental information about the project activities.
• Is useful to assess the project implementation against the requirement derived from EIA.
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Environmental auditing
• Is a part of ISO (International Organisation for Standardisation)
• ISO14000 family of standard is emphasis on environmental management to take a more pro-active approach to provide a practical toolbox to assist in the implementation of actions supportive to sustainable development.
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Objectives of environmental audit
• Meeting the requirement of ISO14001
• Improving environmental regulation
• Achieving the goals of environmental policy
• saving money
• Continuous environmental improvement
• identifying potential environmental problems and impacts
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• Checking environmental management system (EMS) to be maintained
• deciding to do business with a supplier
• ensuring the quality of sampling and monitoring
• meeting contractual requirements
• improving the public perception the organisation
• improving management and employee awareness
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Types of Environmental Auditing
• 1. Internal audits– an in-house evaluation of the adequacy of
controls to ensure regulatory compliance
• 2. Cross audits– Usually an audit for a supplier by a
customer
• 3. External audits– an independent entity (third party) will do
auditing
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3 stages of environmental audit• 1. Pre-audit stage
– following TOR– obtaining background data
• 2. Audit stage– observation of what is happening and
discussion with operational personnel– It normally takes 1-10 days to complete.– If the sampling is necessary it will take 1-
several weeks.
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• 3. Post-audit stage– Audit report is completed.– It is submitted to the auditee and the cli
ent for comments.
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Characteristics of audit report
• Confidential
• Based on traceable evidence
• Complete with the inclusion of adequate support for the finding
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Life Cycle AssessmentLife Cycle Assessment(LCA)(LCA)
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Life-cycle Assessment
is a procedure for assessing policy analysis based on environmental implication of options and decisions.
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• is a tool to help us decide between alternative plans, policies, designs for products/services
• is a means of assessing the effects of a business’s products, as well as the raw materials and components purchased from suppliers.
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• LCA LCA –are not currently required by are not currently required by
legislationlegislation, nor are they , nor are they always available for always available for investigation by the investigation by the publicpublic..
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Concept of LCAConcept of LCA
• Developed from the need to take ‘a holistic view’ of a project or activity, but with particular emphasis on industrial activity
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LCA takes the concept of LCA takes the concept of “cradle to grave”“cradle to grave”
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Why do life cycle assessment?•Minimise the magnitude of pollution
•Conserve non-renewable resources•Conserve biological systems•Develop and utilise the cleaner technology•Maximise and recycling the raw materials and waste
•Apply the most appropriate pollution prevention and/or abatement technologies
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Aspects of LCAAspects of LCA
• 1. LCA is a management approach for reducing the impact of a product, package, or activity upon physical protection of:
• human health
• ecosystem health
• resource consumption
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• 2. LCA is the eco-balance approach involved in
– eco-labeling product
– eco-marketing of product
– design of new products
– investment & purchasing decision
– determining future development strategies
– design environmental policy instruments
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10 Golden Guidelines for Ecodesign:
1. Do not design products, but life cycles 2.Natural materials are not always better 3.Energy consumption: often underestimated 4. Increase product life time 5. Do not design products, but services 6. Use a minimum of material 7.Use recycled materials 8. Make your product recyclable 9.Ask stupid questions 10. Become an O2 member!
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Environmentally sound materials do not exisEnvironmentally sound materials do not exist, but environmentally friendly products and t, but environmentally friendly products and services do. services do.
Life cycle thinking helps a designer to develoLife cycle thinking helps a designer to develop these.p these.
How is LCA used?? By manufacturer!!
Product developmentProduct improvementProduct comparison
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Stages in LCAStages in LCA• 1. Goals and scope of study
– includes identification of the system boundary, subsystem involved and input & output of materials and energy
• 2. Inventory stage– quantifies input-output flow (inputs to
system and waste produced)• materials, energy, wastes, emission and
product
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• 3. Impact assessment stage– assesses the resource consumption
and environmental impacts
• 4. Improvement assessment stage– identifies the potential improvement
to have less environmental impacts throughout the whole life-cycle of product/service
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Key Steps of a Life Cycle Impact Assessment:
The following steps comprise a life cycle impact assessment.
1. Selection and Definition of Impact Categories - identifying relevant environmental impact categories (e.g., global warming, acidification, terrestrial toxicity).
2. Classification - assigning LCI results to the impact categories (e.g., classifying CO2 emissions to global warming).
3. Characterization - modeling LCI impacts within impact categories using science-based conversion factors. (e.g., modeling the potential impact of CO2 and methane on global warming).
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4. Normalization - expressing potential impacts in ways that can be compared (e.g. comparing the global warming impact of CO2 and methane for the two options).
5. Grouping - sorting or ranking the indicators (e.g. sorting the indicators by location: local, regional, and global).
6. Weighting - emphasizing the most important potential
impacts.
7. Evaluating and Reporting LCA Results - gaining a better understanding of the reliability of the LCA results.
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Impact Categories: The following is a list of several impact categories and endpoints that identify the impacts.
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Global Impacts:
1. Global Warming - polar melt, soil moisture loss, longer seasons, forest loss/change, and change in wind and ocean patterns.
2. Ozone Depletion - increased ultraviolet radiation.
3. Resource Depletion - decreased resources for future generations.
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Regional Impacts:
1. Photochemical Smog - "smog," decreased visibility, eye irritation, respiratory tract and lung irritation, and vegetation damage.
2. Acidification - building corrosion, water body acidification, vegetation effects, and soil effects.
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Local Impacts:
1. Human Health - increased morbidity and mortality.
2. Terrestrial Toxicity - decreased production and biodiversity and decreased wildlife for hunting or viewing.
3. Aquatic Toxicity - decreased aquatic plant and insect production and biodiversity and decreased commercial or recreational fishing.
4. Land Use - loss of terrestrial habitat for wildlife and decreased landfill space.
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Emission
Quanti ty (k
g)
Greenhou
se
Ozone laye r depleti
on
Humantoxicity
Acidification
CO2 1.792 x 1 - - -
CO0.0006
70- - x 0.012 -
NOx0.0010
91- - x 0.78 x 0.7
SO20.0009
87- - x 1.2 x 1
Effectscores:
1.792 0 0.002040.001
7
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In the comparison between paper and polyethylene (LDPE) the calculated effe
ct scores can be displayed as a graph. The highest calculated effectscore is s
caled to 1 0 0 %. This means the mat erialscanonl y be comparedper eff ect.
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The length of the columns actually rep resents the seriousness of the effects.
This makes itpossible to add the colu mns to calculate a final result.
The weighted scores can be added for a final judgment. The graph above clearly shows a pref
erence for paper
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Example of LCAExample of LCA
• Life-Cycle Design = LCA– a similar concept to ‘eco-design’
– emphasis on the design phase of product development
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Benefit of LCABenefit of LCA
• Example in Sweden:– The links between LCA &
Environmental policy
– Energy & materials consumption and pollution emissions assist to achieve the environmental policy goals
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Problems of LCAProblems of LCA
• There is a low awareness of LCA in government and industry.
• Lack of relevant, local, inventory data
• The cost of preparing LCA
• Difficulty of environmental impact comparison based on ecosystem health (different responses, values, etc.)
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ISO14000ISO14000
ISO14000 = International Organisation for Standards
(aim to develop environmental management system(EMS)
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LCA v.s. ISO 14040LCA v.s. ISO 14040
• LCA has been under development in 4 standards of ISO 14040-43
• ISO 14040: Environmental Management - Life-cycle Assessment (in 1998):- Principle and Framework– provides the general requirements for
conducting and reporting and LCA (no description of technique in detail)
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ISO 14041
• Environmental management - Life-Cycle Assessment - Goal and scope definition and inventory analysis– methodology for performing life-
cycle inventories
– reporting their results
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ISO 14042ISO 14042
• Environmental management - Life-Cycle Assessment - Life-cycle impact assessment – Principle and procedure for
understanding
– Evaluating the size of environmental impacts identified in LCA studies
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ISO 14043ISO 14043
• Environmental management - Life-Cycle Assessment - Life-cycle interpretation– provide a systematic approach for
interpreting the information generated by inventory analysis and impact assessment of a system
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Davy (1997) notes that
• “ a concern for some government has been whether the ISO14000 standards represent a trade barrier under world trade organisation (WTO)”
??????????????????
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