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Working in a Laboratory: The Hazards and Risks

blog Laboratory hazards, Laboratory prevention, Laboratory risk, Laboratory Safety

1. Chemical Hazards

2. Electrical Hazards

3. Biological Hazards

4. Physical Hazards
Whether you’re an experienced part of a commercial research team, an aspiring
scientist or a lab manager, it’s important that you are aware of the potential
hazards and risks in the scientific workplace.
Many labs are more hazardous and risk-filled than the average workplace – the cost
of existing on the cutting edge of the sciences. Whether you’re looking for cures,
breakthroughs or new technologies, it is vital that you and the whole team
understand each and every hazard of the laboratory.


effective research with safe practice. So, here we have listed a selection of the most
common hazards and risks of the modern laboratory.
Chemical Hazards
Handling chemicals is a typical part of the day-to-day routine for many lab workers,
but the risks and hazards remain the same. Many organic and inorganic chemicals
are corrosive to the skin and to the eyes, and can be toxic. Full safety wear should
be provided to any members of the team handling chemicals, and provisions to
treat any exposure or clean spillages should be present in the laboratory.
It’s not only direct contact which may be hazardous, chemical reactions which
generate heat can lead to thermal burns. This further demonstrates the importance
of ensuring the surface of the skin is protected from the potential for burns and

Similarly, incorrect venting within the laboratory could be hazardous. Without full
and correct ventilation, a distillation or chemical reaction could lead to an
explosion in the lab. Depending upon the size of the explosion and the materials
affected, this could be hugely dangerous for the team and for the lab.
Inhalation of certain chemicals can be dangerous, with many of the most common
solvents proving to be extremely toxic. These dangers can be immediate or slowly
manifest over time – making it important that the research team are protected
from the fumes produced by these hazardous chemicals.

Ingesting chemicals is a huge risk in many laboratories, due to contamination on

hands, food and drink. This demonstrates the importance of safe and secure
storage for all food and drink items, away from chemical exposure. Furthermore,
comprehensive hand-washing and sanitation provisions should be accessible for all
members of the research team exposed to hazardous chemicals.

When it comes to chemical hazards, effective prevention is the best way to manage
the risks of working with these dangerous substances. Practising proper chemical
segregation is essential in all labs, as some substances can react with each other to
create chemical reactions, fires and even explosions. Protective clothing and good
housekeeping are also important for protecting your team from chemical hazards.
Watch the video below for more information on how to minimise chemical hazards
in your lab and what to do in an emergency.

Electrical Hazards
Even the most experienced research professional can overlook basic safety
principles when working with electricity – so it is vital that protective measures are
employed throughout the laboratory. Particularly hazardous are electrical units
which are positioned close to liquid, so these should be fitted with ground-fault
circuit interrupters to break the circuit should any current flow to ground.
Electrical fires are another common laboratory hazard, which can occur when
incorrect or unsafe cords and plugs are used. Any electrical appliances used in the
laboratory should be fit for purpose, up-to-date and correspond to connected
devices before they are implemented. Any electrical apparatus, from adaptors to
cables, not safety-tested could compromise the safety of the lab and research
Electrical hazards can easily be overlooked in labs, which tend to have more health
and safety risks than in other workplaces. Electrical hazards are potentially life
threatening, however, so minimising their risk is vital. All power outlets that could
be exposed to wet conditions should be equipped with ground-fault circuit
interrupters. Flexible extension cords should also be well maintained and never
used as a substitute for permanent wiring. Electrical pendants can be used where
possible to keep cords out of the way.

If someone comes into contact with a live electrical source it is important not to
touch them, as you could also be electrocuted. Instead turn the source off or push
them clear of the source of the shock with a dry implement, such as a wooden
broom handle. Your team’s trained member should administer first aid. In the case
of a small electrical fire, use a multi-purpose fire extinguisher – never put water on
an electrical fire.

Biological Hazards
The use of bacteria, viruses, blood, tissue and/or bodily fluids in the lab can lead to
potential biological hazards. These materials can all carry disease or hazardous
allergens which could put the lab team at risk. The effects of the diseases and
allergens can be immediate or take significant time to manifest, demonstrating the
importance that all members of the lab team are given sufficient protection, even if
the dangers are not yet known.
Diseases carried by humans and animals used in research can be transmitted by
the team, who then may become carriers. This means that biological hazards could
prove to be a massive risk for not only the lab professionals working with the
materials, but anyone they come into contact with outside of work. Sometimes
incredibly infectious, biological hazards (biohazards) can be amongst the biggest
risks of the modern research lab, so every consideration must be made to ensure
the team and the wider public are protected against contagious materials.

Proper storage and protection is key to preventing a biological emergency in your
lab. Wearing appropriate protective clothing and keeping biological agents
contained in the correct areas are essential for minimising exposure to risk.
Systems and procedures for safe use, handling, storage and transport of biological
hazards should all be in place. Appropriate housekeeping, such as
disinfecting work surfaces and properly disposing of waste, are also vital for
minimising biological risk.
Emergency procedures should be prepared in advance, and the primary objective
should be to contain the biological hazard and minimise risk to people and the
environment. Depending on the situation, a variety of actions may be required,
such as informing others, isolating the area, evacuation, seeking assistance,
preventing the spread of contamination or spills, or decontaminating the work
area. First aid or medical treatment may be required in some situations.

Physical Hazards
And with so many unique risks at play in the modern lab, it can be easy to overlook
the more commonplace, physical risks. Trip hazards and mishandling mistakes are
rife in busy, bustling labs.
Handling is one of the major concerns for all lab managers, with members of the
research team susceptible to injury if not following safe handling requirements.
Hot, heavy and sharp apparatus can all compromise the health and welfare of
members of the research team. This makes it important that full and correct
handling equipment such as safety gloves is provided. Furthermore, training for
correct lifting should be conducted so the whole team can lift and carry without
fear of injury.

Slips, trips and falls are more likely to occur in the laboratory than many other
workplaces due to the amount of time researchers spend on their feet and the
volume of different materials present. Due care and diligence must be paid by
every member of the team to reduce the presence of slip and trip hazards – to
protect themselves and other members of the team. All essential and non-essential
items which are stored in the laboratory must have a sufficient storage space,
keeping them well out of the team’s way.

And finally, perhaps the most common of all hazards and risks in the science lab is
the humble glass tube. Many an experienced lab professional has cut their finger or
hand when forcing a rubber stopper into a glass tube. Whilst this will, perhaps,
always occur – the risk can be reduced with continued encouragement of correct
stopper replacement, using gentle pressure whilst rotating the glass tube.

Preventing physical risk to your team in the lab can often be achieved by effective
training and good housekeeping. Staff should be trained in the proper procedures
for lifting, pulling and pushing, as well as the dangers of repetitive movements, and
the handling requirements for different equipment. Proper housekeeping is
essential for preventing slips, trips and falls in the lab, so any potential hazards
should be quickly disposed of or tidied away. Also, a safety policy can help identify
and protect your research team from any kind of potential hazard.
In an emergency situation, effort should be made to contain the hazard as quickly
as possible. First aid or medical assistance should be provided by an appropriately
trained team member or medical professional.

Useful government resources for laboratory safety

 Biological agents: Managing the risks in laboratories and healthcare

 Laboratory Safety Chemical Hygiene Plan (CHP)

 REACH and Safety Data Sheets

 Globally Harmonised System (GHS)

 Laboratory Chemical Safety Summary (LCSS)