As a dispute over the athletic fields overhaul at the regional high school heads to court, the Oak Bluffs board of health appears poised to adopt a two-year ban on artificial turf in town.

At a meeting Tuesday morning, the board resumed ongoing discussion around imposing a moratorium on turf fields, aimed at preventing PFAS chemicals from leaching into the groundwater. One day earlier, the regional high school committee voted to sue the Oak Bluffs planning board over its decision to deny a special permit that would allow a long-planned turf field to be built at the high school.

“I come back to this conclusion,” board of health chairman William White said Tuesday. “I’m going to err on the side of caution.”

PFAS (which stands for per and polyfluoroalkyl substances) are a large group of manmade substances, dubbed “forever chemicals” for their inability to break down in the environment.

Discussion about a possible ban on artificial turf began at the board of health last December. The issue was discussed at meetings through early February, and revisited again early this month.

On Tuesday board members reviewed a draft version of the moratorium that would bar the installation of artificial turf for up to 36 months, while the board continues to study and assess the risks associated with PFAS. Board members indicated that the moratorium will likely be changed to 24 months, based an an opinion from town counsel Michael Goldsmith.

“So that’s going to be one of the changes, 24 months instead of 36,” Mr. White said.

Board member Tom Zinno said if the moratorium is adopted, it will allow the board to take time to evaluate the dangers of PFAS.

“We need to sit back and get more information,” Mr. Zinno said.

He added that information about PFAS is growing and changing rapidly, warranting caution.

“It’s on the Vineyard,” he said. “It’s not going anywhere, it’s just accumulating.”

Board member James Butterick agreed.

“The evidence against PFAS is growing just every day,” he said.

Regional school committee member Kris O’Brien attended the meeting and questioned whether the draft ban had been fully reviewed by counsel. Mr. White reiterated that it is only a draft.

Noting the divisiveness around the turf field project, he urged Islanders to keep their criticisms trained on the board of health.

“If someone’s going to be the lightning rod, let it be me as the chair, or one of the other board members,” Mr. White said.