There is always a sense of panic when there is a chemical leak. Certain chemicals can have a devastating effect on the environment and on the humans that may come into contact with it. This can include the poisoning of soil and water or the destruction of plants and wildlife. Humans may be affected if the chemical comes into contact with the skin or if it is breathed in. Lung damage is one of the worst examples of what chemicals can do. Permanent cell damage to the skin is also a distinct possibility.
If a company is following the correct Health and Safety executive COSHH guidelines, then there should be a procedure in place to deal with any chemical spills or issues. One of the first things that need to be in place is some Chemical Spill Kits from https://hydepark-environmental.com/spill-response/spill-kits/chemical. This can help to mitigate any accidental spills from becoming a more serious problem later on. The most important thing to do is to make sure that any spill is dealt with quickly before it develops. Having a plan to deal with emergency situations is a large part of the COSHH regulations that need to be in place.
Containing the spill is the first order of the day. If that can be achieved, then the lasting damage can be mitigated. If the situation is really serious, then the authorities will need to be contacted immediately.