More than 140 calls regarding air pollution in Mount Maunganui have been made to the regional Pollution Hotline in the past 18 months.
One-hundred-and-three calls were made to the Bay of Plenty Regional Council hotline in 2014, with another 42 so far this year.
Pollution-prevention team leader Stephen Mellor said the areas of concern were industrial areas around Hewletts Rd, Totara St and Aerodrome Rd.
"At these particular locations, there are many major industrial activities and considerable traffic concentrated within a relatively small area that also has a residential community nearby," he said.
"We have been keeping a close eye on this area for some time and already have a programme of air quality and consent compliance monitoring and response in place."