wshc - landscape and horticulture guidelines_16 jan 2012(1)

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Safety for Landscape and Horticulture Works

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  • 1

    WSH Guidelines Landscape and Horticulture Works Draft for Industry and Public Comment Document Number: WSHP-HKS-03 Comment Period ends on 24 Feb 2012

  • 2

    Table of Contents 1. Introduction ............................................................................................................ 4

    2. Risk Assessment.................................................................................................... 5

    3. Tree Management .................................................................................................. 6

    3.1 Common Hazards............................................................................................. 6

    3.1.1 Moving Traffic............................................................................................. 6

    3.1.2 Working at Heights................................................................................... 13

    3.1.3 Falling Branches ...................................................................................... 13

    3.1.4 Overhead Cables ..................................................................................... 14

    3.1.5 Manual Tree Access (MTA)...................................................................... 14

    3.2 Operation of Aerial Lift/ Mobile Elevated Work Platforms (MEWP)................. 18

    3.3 Operation of Cranes ....................................................................................... 20

    3.4 Operation of Excavators ................................................................................. 22

    3.5 Operation of Chainsaw ................................................................................... 23

    3.6 Tree Transplanting.......................................................................................... 29

    4. Horticulture Management ..................................................................................... 35

    4.1 Common Hazards........................................................................................... 35

    4.1.1 Working along Roadsides ........................................................................ 35

    4.1.2 Scaffolds and Ladders ............................................................................. 36

    4.1.3 Equipment and Hand-held Cutting Tools.................................................. 38

    4.2 Watering Operation......................................................................................... 40

    5. Grass Maintenance .............................................................................................. 42

    5.1 Operation of Grass Cutter............................................................................... 42

    5.2 Grass maintenance on steep slope ................................................................ 44

    5.3 Operation of Ride-on Mowers ......................................................................... 44

    5.4 Transportation of Equipment using Lorries ..................................................... 45

    6. Park Cleansing..................................................................................................... 47

    6.1 General Park Cleaning Operations................................................................. 47

    6.2 Cleaning Water Bodies ................................................................................... 49

    7. Construction Management and Facilities Management........................................ 51

    8. Chemical Operations............................................................................................ 53

    8.1 Storage and Handling of Chemicals ............................................................... 54

    8.2 Application and Use of Chemicals .................................................................. 55

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    8.3 Disposal of Chemicals .................................................................................... 56

    9. Other Hazards and Controls................................................................................. 57

    9.1 Contact with poisonous / venomous / stinging / biting animals ....................... 57

    9.2 Exposure to Soil-borne Micro-organisms........................................................ 58

    9.3 Heat Stress..................................................................................................... 58

    9.4 Work Postures ................................................................................................ 59

    10. Personal Protective Equipment .......................................................................... 60

    10.1 Standard Work Attire .................................................................................... 60

    10.1.1 Protective Clothing ................................................................................. 60

    10.1.2 Safety Footwear ..................................................................................... 61

    10.2 Other PPE..................................................................................................... 61

    10.2.1 High Visibility Vests................................................................................ 61

    10.2.2 Head Protection ..................................................................................... 62

    10.2.3 Eye Protection........................................................................................ 62

    10.2.4 Face Protection ...................................................................................... 63

    10.2.5 Hearing Protection ................................................................................. 64

    10.2.6 Hand Protection ..................................................................................... 64

    10.2.7 Fall Protection ........................................................................................ 64

    11. References......................................................................................................... 65

    12. Acknowledgements ............................................................................................ 66

    Annex 1 Permissible Exposure Limits for Noise.................................................... 67 Annex 2 RA Sample .............................................................................................. 69

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    1. Introduction The Workplace Safety and Health (WSH) Act came into effect in March 2006. Under this new Act, stakeholders are responsible for managing the risks they create at the workplaces and taking reasonable practical steps to ensure workers' safety and health. From September 2011, the WSH Act has extended its coverage to all workplaces including landscaping and garden maintenance. Workers in the landscaping and garden maintenance industry are exposed to hazards such as working alongside with moving traffic, working at heights, excessive noise, use of machinery and equipment, contact with insects, use of chemicals and heat stress. The risk of accidents and ill health due to these hazards can result in suffering, sickness absenteeism, productivity loss, disability or even death. All these can be prevented. The purpose of this guide is to provide information and guidance on the common workplace hazards which the workers involved in landscaping and garden maintenance activities may face, and their prevention measures. To make them easy to follow, they are illustrated with photographs and graphics, and the hazards are grouped in accordance with various operations such as tree management and horticulture management. All supervisors and workers should familiarise themselves with these guidelines. It is everyone's responsibility to ensure a safe and healthy working environment. Note: This set of guidelines replaces the Workplace Safety and Health Guidelines

    Landscape and Horticultures Works published by WSH Council in August 2008.

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    2. Risk Assessment Under the WSH (Risk Management) Regulations 2006, risk assessments are to be conducted to address the safety and health risks posed to any person who may be affected by the activities in the workplace. Risk assessment is the process of:

    Identifying and analyzing safety and health hazards associated with work Assessing the risks involved and Prioritizing measures to control the hazards and reduce the risks

    Risk assessment allows us to identify the hazards at workplaces and implement effective risk control measures before it escalate into accidents and injuries. Risk Control

    ELIMINATION Better design for skyrise greenery to eliminate all possible hazards such as falling from height

    SUBSTITUTION Replace retrofitted lorry crane with proper MEWP

    ENGINEERING CONTROLS Deploying Truck Mounted Attenuator (TMA) while working on road with speed limit 70km/h and above

    ADMINISTRATIVE CONTROLS Put up warning sign near worksite

    PERSONAL PROTECTIVE EQUIPMENT (PPE)

    Wear head, ear, eye and hand protection when operating a chainsaw

    Figure 1: Hierarchy of control The control of hazards and reduction of risks can be accomplished by following the WSH Hierarchy of Control (see Figure 1). These control measures are not usually mutually exclusive. Generally, it may be more effective to use multiple control measures, for example, engineering controls work better with administrative controls like training and SWPs. For a more detailed description of each type of risk control method, please refer to Code of Practice on WSH Risk Management. Under the WSH (Risk Management) Regulations 2006, every workplace including factories, should conduct risks as

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