It's easier to determine condition through the crop they were working on, if farm labourers, and where they were. A good example would be Haiti, which was majority a sugar industry. Due to the process of sugar cane needing to be done quickly before it turned, sugar production was very hot and time/labour intensive, so much so that after independance, some revolutionary leaders lost a lot of support by trying to encourage sugar cane production.

There are also reports of the Spanish in Peru, using the encomienda system in mining and in sugar, where in the former, people would die from asphyxiation, mercury poisoning, and other horrors, whereas the latter, was again, very intensive, but there is also reports of people being caught and brutally killed by sugar cane crushers. The conditions were awful enough, that in Peru, just like in Hispaniola with the reports of Columbus's governing of the Caribbean, parents would cripple their children so then they wouldn't be forced into that work.