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This is to certify that your paper entitled «Evaluation of occupational and environmental exposure to heat stress based on WBGT index in an industrialunit in Ahvaz city» was indexed with 6 pages, in the CIVILICA citation database, code COI:CHHE01_0843, after evaluation and approval of the referees of the "1st international conference on health, hygiene and education held in Sari 2024.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above conference and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.