Recommended Reading / Viewing. 1  Your engine manufacturer's operating instructions. 2  Mixture Magic (John Deakin) 3  EGT, CHT, and Leaning (Mike Busch) 4  Leaning Basics (EAA/Mike Busch) (video) 5  Leaning: The Advanced Class (EAA/Mike Busch) (video)
PCBs are a probable human carcinogen. Studies of PCBs in humans have found increased rates of melanomas, liver cancer, gall bladder cancer, biliary tract cancer, gastrointestinal tract cancer, and brain cancer, [1] and may be linked to breast cancer. PCBs are known to cause a variety of types of cancer in rats, mice, and other study animals. [2].
www.safewater.org  While some microbes play an important part in our daily lives by keeping us healthy, others are nothing but bad news. These âbad-newsâ microbes are called disease-causing microbes and can make humans, animals and plants sick by causing infection and disease.Most microbes belong to four major groups: bacteria, viruses, protozoa or fungi.(To find out more, see the âBacteria/Viruses/Protozoaâ fact sheets).ww.safewater.org  While some microbes play an important part in our daily lives by keeping us healthy, others are nothing but bad news. These âbad-newsâ microbes are called disease-causing microbes and can make humans, animals and plants sick by causing infection and disease.