sentences:  Workers are also at risk of overexposure to UV rays from lamps used, and overexposure to carbon dioxide, carbon monoxide, and nitrogen oxides from devices used to promote cannabis growth.Cuts, nicks, and scrapes are also a risk during the harvest of cannabis buds.A survey completed by the CDPHE has found that while workers valued safety, 46% of them never received any training in safety procedures and protocols.