Elevated Levels of Sulfur Dioxide Found in Air Over STX

Limetree Bay Terminals on St. Croix in April 2020. (Source photo by Linda Morland)

Preliminary air quality testing conducted by the Virgin Islands National Guard Civil Support Team Saturday found elevated levels of sulfur dioxide in the air near the Limetree Bay Refinery.

In a news release issued Saturday, Government House said the findings were the result of new monitoring instruments in place and the mobilization of VING’s Civil Support Team. The Civil Support Team joined the investigation into the source of the noxious odor after being activated by Gov. Albert Bryan Jr. It identified the chemical constituents after conducting air quality monitoring Friday afternoon into Saturday morning.

The team’s preliminary reading found elevated quantities of sulfur dioxide in the air near the refinery, which has narrowed the investigation to the small industrial corridor on the island’s south shore that includes the refinery, the Diageo Rum Distillery, Anguilla Landfill, and the asphalt plant north of the landfill.

However, readings conducted outside the other facilities Saturday did not provide any elevated readings of harmful chemical constituents, the Government House statement said.

Based on the chemical constituents present in the atmosphere, the team’s investigation continues to center on the refinery but has not ruled out other sources, the statement said.

The Government of the Virgin Islands received additional air quality monitoring instruments from the Environmental Protection Agency in support of the ongoing investigation. The equipment arrived in St. Croix Saturday and will be utilized by the Department of Planning and Natural Resources and the EPA. It will be deployed throughout the island to conduct continuous air quality monitoring in support of confirming the exact source of the odor.

Once the source is confirmed and identified, the Government’s Unified Command team will take definitive action to eliminate the source and seek appropriate remedies and penalties with the appropriate parties, Government House said.

VING’s Civil Support Team was stationed in Frederiksted town Saturday evening in the effort to quickly mobilize and conduct air quality testing in response to resident complaints.

Government House strongly encouraged residents with respiratory ailments such as allergies, lung disease, or asthma to consider staying indoors or taking other protective actions.

Anyone with questions or who wants to report the smell of a noxious or gaseous odor can call DPNR at 340-773-1082 ext. 2221 or the Environmental Health Division at 340-718-1311 ext. 3709.

The Government’s Unified Command team will continue its response through the evening Saturday and provide an update on Sunday.