PARIS, France — Workers are preparing to decontaminate some Paris streets surrounding the Notre Dame Cathedral that have been tested with high levels of lead following the April blaze that damaged the landmark.

High fences blocked Parisians and tourists from several streets and a bridge around the monument on Tuesday.

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The culture ministry said workers plan to use two decontamination techniques. One involves spreading a gel on public benches, street lights and other fixtures to absorb the lead, letting it dry for several days before removing it. Another method will feature high pressure water jets with chemical agents.

The cleanup work inside Notre Dame, suspended last month for safety reasons, will resume next week.

Hundreds of tons of lead in Notre Dame's spire and roof melted during the April fire.

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A waterproof tarps cover the roof of Notre Dame cathedral in Paris, Friday, April 26, 2019. Professional mountain climbers were hired to install synthetic, waterproof tarps over the gutted, exposed exterior of Notre Dame Cathedral, as authorities raced to prevent further damage ahead of storms that are rolling in toward Paris. (AP Photo/Michel Euler)
AP