This MRAT explains the controls which must be in place when making or using purchased compost in gardening activities.

Use of a high-power laser to cut plastics, rubber, wood, card and textiles under computer control as an example of CAD / CAM.

All plastics (polymers) degrade at sufficiently high temperatures, producing fumes with various hazards. Those materials presenting hazards at lower temperatures are discussed here.

Controlling the dust and fumes from shaping and cutting plastic materials by hand and by machine.