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All human activities have to be conducted
following a number of common-sense rules in order to avoid taking unnecessary
risks. Similarly, all chemicals have to be used for the purposes they
are intended for, so as to protect the consumer and the environment from
any unacceptable risk.
The same goes for aromatics; they are safe for all their intended uses,
but if they are not used or handled properly, they can have an adverse
impact on the environment as well as on human health and safety.
Not only the aromatics industry but the whole chemical industry is committed
to continuous improvement in all aspects of health, safety and environmental
performance. This commitment is called Responsible
Care and includes Product
Stewardship, a way to monitor and minimise the potential adverse impact
of products on human health and the environment. The industry gives the
highest priority to the safety of its products with strict and detailed
instructions for safe use, handling, transportation, processing and disposal.
Key factors in deciding whether chemicals could harm human health or the
environment are hazard and risk.
What is the difference between hazard and risk?
The hazard associated with a chemical is its intrinsic ability to cause
an adverse effect. Risk is the chance that such effects will occur. For
example, whilst a chemical may have hazardous properties, provided it
is handled safely under contained conditions, then any risk to human health
or the environment will be extremely low.
Almost all human activities involve some level of risk: the key is to
ensure that the benefit outweighs the risk. The use of fire by humans
is an interesting example of optimising the balance between hazard and
risk. Fire has played a vital role in the evolution of our species, allowing
us to eat a wider range of foods, and live in colder climates than would
otherwise have been possible. It is nonetheless extremely hazardous and
must be used under carefully controlled conditions to keep risks to a
minimum.
Are risks associated with chemicals such as aromatics
assessed in any way?
Of course they are. Risk assessment examines the hazardous properties
of a chemical in the context of human or environmental exposure to that
chemical. In other words, it is not enough to know that a substance is
"hazardous"; you have to know who or what is exposed to it,
in what circumstances, how much, how often, etc. before you can assess
the real risks incurred by people or the environment, and then, on the
basis of these data, set safe limits and define the necessary precautions
when using it or transporting it. Once again, this is something we do
unconsciously everyday of our lives; we know, for example, that it would
be very risky indeed to light a match while refuelling our car.
The risk assessment establishes that significant margins of safety exist
between any exposure and the levels known to cause hazards. Risk assessments
are being carried out at the European Union level to ensure that current
usage of chemicals is not posing an unacceptable risk to human health
or the environment.
Chemicals Management is part of the Responsible
Care programme, and involves managing any risks related to chemical
products during their whole lifetime, from design to disposal. This aims
to achieve the best possible balance between acceptable risk and maximum
benefit for society in the short-, medium- and long-term. Governments
set the level of the balance in an open dialogue with stakeholders, including
consumers and industry.
Click
here for more information on chemicals management and risk assessments.
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