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A lot of people have to get dirty in order to keep our water clean. From city sewage workers to portable toilet cleaners, readers will learn all th...

Here's to the heroes who keep our world clean. From roadkill collectors to landfill gas operators, these workers get dirty to keep us healthy and s...

Where can you get paid to deal with pet food, fish guts and organ meat? In the food industry! Readers will explore some of the most disgusting food...