Unmarked stairs are an accident waiting to happen. Even if you have only one or two steps, put a strip of white or reflective tape on the edges so that people can see them, even in dim light. Rugs or tarps under a car to catch leaking fluids may keep the garage floor clean, but it also becomes a fire hazard. Get rid of it, and soak up the spills with cat litter or sawdust. If the stains have already soaked into the floor, try oven cleaner to remove them.
About Clinical Chemistry. Clinical Chemistry is the leading international journal of clinical laboratory science, providing 2,000 pages per year of peer-reviewed papers that advance the science of the field. Clinical Chemistry is an archival research journal that is required reading for professionals working in the following areas:
Some fumigants (chemicals used to kill pests) are also poison gases, for example phosphine, which is used to kill pests living in grains. The advantage of a gas is that it evaporates after use, so that if food is treated with gas, there is no need to rinse it to remove the poison.