background: raw sewage contains various pathogenic organisms including bacteria, viruses, fungus, worms and protozoa. workers at wastewater treatment plants (wwtps) are exposed to these organisms as well as to h2s gas causing many health hazards. objectives: to assess some work-related health effects among wwtps workers with special emphasis on the most common infections as well as cardiopulmon...

BACKGROUND The paper presents a quantification of main (hydrogen sulfide and sulfate), as well as of intermediate sulfur species (zero-valent sulfur (ZVS), thiosulfate, sulfite, thiocyanate) in the Yellowstone National Park (YNP) hydrothermal springs and pools. We combined these measurements with the measurements of quadruple sulfur isotope composition of sulfate, hydrogen sulfide and zero-vale...

The root cause of odor and corrosion in collection systems is sulfide, which is produced from sulfate by bacteria residing in a slime layer on the submerged portion of sewer pipes and structures. Once released from the wastewater as hydrogen sulfide gas, odor and corrosion problems begin. Another type of bacteria utilizes hydrogen sulfide gas to produce sulfuric acid that causes the destruction...

One of the major abiotic stresses limiting the productivity and the geographical distribution of many important crops is low temperature. Hydrogen sulfide (H2S) is an important signaling molecule involved in several stress-resistance processes such as drought, salinity and heavy metal stresses in plants. The aim of this study was to investigate the effects of exogenous H2S...