Webamazon's annual prime day event will be held on july 16 and 17, but behind the deals lie health and security concerns for warehouse and delivery workers,. Webworking in an amazon warehouse is very dangerous every day of the year, but during peak times like prime day, which takes place this year on july 16 and 17, our. Weban investigation spearheaded by senator bernie sanders examining amazon’s practices found that nearly half of the company's warehouse workers get.