More than 100 people have lined the street in front of the Pictou County Wellness Centre Sunday demanding a cleanup of the Northern Pulp mill.
The haze from the mill in Abercrombie Point has a sulphur-like smell and drifts across the town. Some locals report the smog gets into their clothes, homes, cars and lungs.
The group is demanding people listen to their concerns about the pollution.
The opponents carried signs demanding clear air and asking the government to take their health concerns seriously.
Wendy Kearley says there's been an outpouring of support behind the movement.
"The majority are behind us," she said.
Still, some people argue the mill employs people in rural Nova Scotia.
"They have just worries because it's a job. Once that's gone they either move or are on a considerable reduction in income and we can appreciate that," said Kearley.
The group is circulating an anti-mill petition. On Sunday morning before the protest there was around 1,000 signatures.
They're also starting up a letter-writing campaign to keep the issue in the spotlight.
The last test for particulate levels at the pulp mill was done eight months ago.
It showed levels 78 per cent above what's allowed.
There hasn't been a test since.
Earlier this week, Environment Minister Randy Delorey told CBC there isn't an imminent threat to human health.
He says he has no intention of forcing it to shut down despite public complaints about the emissions coming from the mill.