The Ohio Environmental Protection Agency has awarded more than $8 million in grants for public bus companies — including those in Portage, Stark and Summit counties — to replace 26 aging diesel buses.

The state agency said the grants will help reduce air pollution. The following Akron-area transit companies received grants:

• The Metro Regional Transit Authority in Akron received $734,274 for 70 percent of the cost to replace two 2006 diesel-powered buses with two new CNG-powered buses.

• The Portage Area Regional Transportation Authority in Portage County received $389,293 for 80 percent of the cost to replace a 2007 diesel-powered bus with a new diesel-powered bus.

• The Stark Area Regional Transit Authority in Canton received $369,460 for 70 percent of the cost to replace a 2009 diesel-powered bus with a new CNG-powered bus.