Concentration of Hydrogen Sulfide in Manhole Exceeded Legal Level; Police Probe Death of Workers Inspecting Pipe in Japan’s Saitama Pref.
- Posted on August 4, 2025
- By The Japan News
- 1 Views
Concentration of Hydrogen Sulfide in Manhole Exceeded Legal Level; Police Probe Death of Workers Inspecting Pipe in Japan’s Saitama Pref.
SAITAMA — A sewer manhole where four workers died during an inspection had a concentration of hydrogen sulfide at least 15 times the legal level, according to the contractor assigned to the work.
