Ald. Margaret Laurino will host a meeting about the impact on the 39th Ward of noise and traffic from O'Hare. Invited speakers will be from the Chicago Department of Aviation, the Federal Aviation Administration and the O’Hare Noise Compatibility Commission. The meeting will be at 6 p.m. April 4 in the H-Building Community Room at North Park Village, 5801 N. Pulaski Road.