Cleanup work at the Paris cathedral was suspended last month over concerns about lead risks Officials plan to resume work later this month under stricter protection rules PARIS: Environmental groups and workers’ unions are calling for measures to ensure that workers cleaning up the fire-ravaged Notre Dame Cathedral and nearby residents are protected from toxic pollution. Cleanup work at the Paris cathedral was suspended last month over concerns about lead risks. Officials plan to resume work later this month under stricter protection rules. In a news conference Monday, environmental groups and unionists warned against lead particles polluting the air in the area, and asked for a regularly updated chart showing pollution levels. They are also pushing for the creation of a medical center to monitor the health status of firefighters, workers and residents. Hundreds of tons of toxic lead in Notre Dame’s spire and roof melted during the April fire.