功課,急急急....thx

P1- Describes SIX different features of the natural environment that must be considered at the planning stage of a construction project

P2- Explain FOUR different forms of global pollution arising from construction projects

P3- Explain how different forms of local pollution arising from construction projects may harm the local environment (Provide min. 4 forms)

P4- Explain FOUR key methods used to protect the natural environment from the impact of the construction and built environment sector

更新:

P5 -Explain THREE different, fit-for-purpose sustainable construction techniques

更新 2:

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    5 年 前
    最佳解答

    P1 Features:

    1) Air quality, ozone quality

    2) Soil quality, natural drainage

    3) Landscape, land use, green belts, agriculture,

    4) Forestry, countryside, heritage

    5) Water resources, water quality, marine environment

    6) Wildlife, biodiversity, natural habitat

    ********************

    P2 Global pollution:

    1) Build-up of greenhouse gases (CO2) causing global warming

    2) Polluting emissions to air causing acid rain, ozone depletion due to use

    of chlorofluorocarbons (CFCs)

    3) Over-extraction of water, fossil fuels and raw materials

    4) Increased energy consumption, electricity generation, deforestation,

    loss of natural habitat, reduction in biodiversity

    ********************

    P3 Local pollution:

    1) Air pollution from combustion products and volatile organic compounds

    (VOCs)

    2) Polluting discharge to water by communities, industry and agriculture,

    contaminated land, waste disposal,

    3) Comfort disturbances by traffic, smells, noise, dust and dirt,

    increased pressure on existing services and infrastructure

    4) Specification of hazardous materials e.g. lead and asbestos,

    extraction of raw materials by drilling, mining and quarrying

    5) Electromagnetic radiation from overhead power lines,

    'sick building' syndrome

    ********************

    P4 FOUR key methods:

    1) Protection by legislation: (for UK: relevant Acts of Parliament,

    UK regulations, European directives)

    (for Hong Kong: Hong Kong Basic Laws & Regulations)

    2) Protection by control: Health and Safety Regulations, Environment

    Agency (EA), local authorities e.g. environmental services, planning,

    building and control departments.

    3) Protection by design and specification: reduction in energy usage,

    minimisation of pollution, reduction in embedded energy, specification

    of environmentally friendly materials, re-use of existing building

    and sites.

    2015-01-09 06:35:29 補充:

    4) Protection by management: simple environmental impact assessments

    (EIAs), improved management of construction sites, clear policies and

    objectives (e.g. reduction in wastage, increase in recycling, noise

    management, dust and dirt control),

    2015-01-09 06:39:11 補充:

    sharing of good practice, raising awareness, communication of information.

    P5 Fit-for-purpose

    1) Energy-based techniques: e.g. reduced energy consumption, improved

    energy efficiency, use of renewable and alternative sources of energy.

    2015-01-09 06:41:38 補充:

    2) Materials-based techniques: e.g. specification of renewable materials,

    consideration of embodied energy and low-energy manufacture of materials

    and components.

    2015-01-09 06:43:19 補充:

    3) Waste-based techniques: e.g. producing less waste and recycling more

    materials, off-site prefabrication, modern methods of construction.

    2015-01-09 22:49:54 補充:

    It is your responsibility to finish your homework, not mine.

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