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- “When an activity raises threats of harm to the environment or human health, precautionary measures should be taken even if some cause and effect relationships are not fully established scientifically.”
www.sehn.org › sehn › precautionary-principle-faqsPrecautionary Principle FAQs — The Science and Environmental ...
limitations of those protective measures. Students must be aware that all labora-tory research has risks and that careful planning and preparation can reduce those risks to acceptable levels.
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Adopt safety procedures in the chemistry laboratory. Handle chemical apparatus and use compounds and reagents etc. Keep and store poisonous compounds properly. Control explosive reactions. Determine the melting point of organic solids. Determine the boiling point of organic liquids. Carry out sublimation. Carry out the distillation process.
- Wear protective lab attire: Make sure you use PPE at all times inside the laboratory. Put on a lab coat with full sleeves, closed-toe shoes, and safety goggles before entering the lab.
- Do not bring food or drink into the lab: It may be tempting to sip on a cup of coffee or some water when working at your experiments, but steer clear of this.
- Dispose of lab waste safely: This is one area of lab safety that researchers often tend to neglect. When disposing chemicals, do not pour them down the sink; use designated disposal bins or containers instead.
- Use caution when handling chemicals: Injuries from chemicals in laboratories are fairly common, but at times, they can be fatal. Karen Wetterhahn, a renowned American chemist, died as a result of mercury poisoning in 1997.
Sep 12, 2015 · The precautionary principle enables decision-makers to adopt precautionary measures when scientific evidence about an environmental or human health hazard is uncertain and the stakes are high.
Mar 5, 2013 · The precautionary principle is most powerful when it serves as a guide to making wiser decisions in the face of uncertainty. Any action that contributes to preventing harm to humans and the environment, learning more about the consequences of actions, and acting appropriately is precautionary.
Precautionary statements are one of the key elements for the labelling of containers under the GHS, along with: an identification of the product; one or more hazard pictograms (where necessary) a signal word – either Danger or Warning – where necessary; hazard statements, indicating the nature and degree of the risks posed by the product
An expression of a need by decision-makers to anticipate harm before it occurs. Within this element lies an implicit reversal of the onus of proof: under the precautionary principle it is the responsibility of an activity-proponent to establish that the proposed activity will not (or is very unlikely to) result in significant harm.
