Hello. This is Elena H. In the early 1900s the safety of the common worker were not taken into account by the owners and managers.
There were problems like how a factory for producing cloths burned down with the workers inside: the women that worked there had been sneaking out so the managers locked them in. The working children would breath in arsenic fumes from paint or get nicotine poisoning from tobacco or spine curvatures from bending over their designated sewing machines. The houses would be crowded with an average of 1.9 people per room in the poorer sections of the cities. Landlords divided smallapartment into more smaller apartments. More and more apartments started not getting any fresh air as new buildings rose around them.
There were some who tried to help solve these issues like Florence Kelley who tried to get child labor banned to get them out of the factories that would kill them. Jane Addams opened a settlement house for the poor to learn and a day care for their children, so they wouldn’t be left home alone, called the Hull House. Architects tried making air shafts between buildings to allow air, but people threw their trash in the air shafts.