are there any health issues in such production?
Yes - heavy metal poisoning, poor indoor air quality, dangerous sound levels and possible over-illumination
Pottery
The chief risks on worker health include heavy metal poisoning, poor indoor air quality, dangerous sound levels and possible over-illumination.

Historically, "plumbism" (lead poisoning) was a significant health concern to those glazing pottery. This was recognised at least as early as the nineteenth century, and the first legislation in the United Kingdom to limit pottery workers' exposure was introduced in 1899.
what do raccoons eat? Insects, worms, acorns, walnuts, fish, bird eggs where are they commonly found? North America from Canada to Panama are they a part of mythology? Yes - among the indigenous peoples of the Americas what currency is used in the last country mentioned before? Balboa what kind of handicraft do they make? Mola, woodcarvings, ceremonial masks and pottery what are the types of last one? Earthenware, stoneware and porcelain
wiki:25657421
Pottery [SEP] Health and environmental issues in production
Although many of the environmental effects of pottery production have existed for millennia, some of these have been amplified with modern technology and scales of production. The principal factors for consideration fall into two categories: (a) effects on workers, and (b) effects on the general environment. The chief risks on worker health include heavy metal poisoning, poor indoor air quality, dangerous sound levels and possible over-illumination. Historically, "plumbism" (lead poisoning) was a significant health concern to those glazing pottery. This was recognised at least as early as the nineteenth century, and the first legislation in the United Kingdom to limit pottery workers' exposure was introduced in 1899.