delÂ·eÂ·teÂ·riÂ·ous. adj. Having a harmful effect; injurious: the deleterious effects of smoking.
Portage is a city in Kalamazoo County in the U.S. state of Michigan. The population was 46,292 in the 2010 census. It is the smaller of the two main cities included in the Kalamazoo-Portage Metropolitan Statistical Area, which has a population of 326,589 as of 2010. Portage is adjacent to the southern boundary of the City of Kalamazoo.
Portage County is a county located in the U.S. state of Ohio. As of the 2010 census, the population was 161,419. Its county seat is Ravenna. The county was created in 1807 and organized in 1808 and is named for the portage between the Cuyahoga and Tuscarawas Rivers. Portage County is part of the Akron Metropolitan Statistical Area, which is also included in the ClevelandâAkronâCanton Combined Statistical Area.