If you believe you have found some improperly managed hazardous waste material it is vitally important to alert proper authorities or professional hazardous waste removal professionals as quickly as possible. Depending on the nature of the given waste it could have a profoundly troubling effect on the environment it has ended up in. Getting it out of the public sphere as quickly as possible is of paramount importance.
Of course this is not to suggest that you should try and quickly handle the offending material yourself. There is absolutely no way that a person without protective equipment and without some built in procedural infrastructure can safely dispose of biohazardous material. In fact by simply moving the problematic items you are not only risking your own health but the very health of everything you come in contact with. Managing hazardous waste is an area that requires very specific expertise and a wealth of safety equipment. As a non-professional the best you can try and do is keep the area clear and wait for the pros to arrive.
Hopefully you are never put in the position of having to manage this sort of dangerous material. If you are though make a point to find the right people to actually take care of it.