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We read with attention the letter from Smet and Kelsey discussing the interpretation of our findings.
Smet and Kelsey1 questioned the validity of our findings regarding the high detection rate of methoxyacetic acid (MAA) we observed in our population despite the restriction in use of its precursors in Europe. First, human biomonitoring studies on glycol ether (GE) exposure in the non-occupational context are very few but other recent studies have also reported a high detection rate of MAA in the European general population in 2007–2009: MAA was detected in 99% and 100% of urine samples with a median concentration of 0.05 mg/L and 0.11 mg/L in a German2 and a French population,3 respectively. Second, regarding the sources of exposure to diethylene glycol monomethyl ether (DEGME) and triethylene glycol monomethyl ether (TEGME) as potential precursors of MAA …
Contributors CW, LM and RG prepared and wrote this reply letter.
Competing interests None declared.
Patient consent Obtained.
Ethics approval CNIL, CCTIRS.
Provenance and peer review Not commissioned; internally peer reviewed.
Correction notice This article has been corrected since it first published online. References to ’Kelsey et al' have been changed to ’Smet and Kelsey' (as per reference 1).
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