Paris Launches Notre-Dame Lead Decontamination Work
Umer Jamshaid 11 days ago Tue 13th August 2019 | 07:20 PM
Paris, (UrduPoint / Pakistan Point News - 13th Aug, 2019 ) :French workers on Tuesday began efforts to remove lead from the area around Notre-Dame cathedral which was contaminated by the devastating April fire, sparking public health concerns and forcing the suspension of restoration work.
Testing revealed dangerously high levels of lead at the site as well as at nearby schools and other buildings, prompting fears that workers and residents could have been contaminated by the toxic metal.
An area measuring 10,200 square metres will be cleansed using an array of techniques. The work is expected to last until August 23.
The process involves vacuuming the pavement, then scrubbing it and finally using a high-pressure hose to both rinse the ground and recover the waste water.
On some kinds of stone, a special gel will be used which will harden after three days and then be removed, taking the harmful particles with it.
After weeks of denying the poisoning threat, authorities admitted in late July that anti-contamination measures had been inadequate. Two schools near the church were closed after hazardous lead levels were detected.
Critics have accused the city of failing to notify the public about the test results, while an environmental group has filed a lawsuit alleging that officials failed to sufficiently contain the contamination.
Securing the structure is a prerequisite for the start of full restoration work.
The vault in particular is at risk of collapse and the process of consolidating it, which is due to resume on August 19 after a nearly-month-long hiatus, is scheduled to last until the autumn, according to the culture ministry.
Only then can an architect carry out a thorough check of the edifice.