Nearly 200 people have died in accidents related to the production, storage and transportation of chemicals in China this year, according to a report by Greenpeace released on Wednesday.

The report suggested that regulation of China’s powerful chemical industry remained lax and inconsistent, a year after a deadly explosion in the port city of Tianjin prompted public outrage and calls for greater oversight.

“China’s chemicals industry is the largest in the world, but it is appallingly underregulated,” Cheng Qian, a Greenpeace activist who studies toxic chemicals, said in the report. “The government must take urgent action.”

The investigation by Greenpeace, which relied on government statistics, found that chemical accidents occurred with alarming frequency in China. From January to August, there were 232 — an average of nearly one a day — killing 199 people and injuring 400 others, the report said. The group did not examine how those figures compared with those from previous years.