";s:4:"text";s:5116:" Effects have included impaired balance, prolonged reaction time, decrease in visual field, impaired hearing, impaired memory, mood changes, and impaired cognitive ability.Necropsy findings may include pulmonary edema, pulmonary hemorrhage, petechial hemorrhages in the brain.The most common source of hydrogen sulfide gas in reservoirs is sedimentary sulfur. Hydrogen sulfide is the chemical compound with the formula H 2S. The pit was not equipped with any type of ventilation system or gas monitoring equipment. It can also be produced by the hydrogen reduction or acid decomposition of a sulfide It may also cause difficulty in breathing for some people with asthma. Sulfur is a constituent of most kerogens and elemental sulfur is a common component of sediments that have been dysaerobic or anoxic. Uses of hydrogen sulfide include: Metallurgy for the preparation of metallic sulfides Preparation of phosphors, oil additives and as an analytical reagent in chemical analysis Metals separation, removal of metallic impurities The Black Sea is the largest of these where sulfide production in the water column is estimated to be 30–50 Tg(S) yrHydrogen sulfide is easily detected by sense of smell up to values of around 100 ppm. The absence of chloride salts strongly promotes this condition and the absence of oxygen is absolutely essential. Hydrogen sulphide. The hydrogen sulfide gas is mainly used in industrial areas. uses of hydrogen sulphide Rheumatoid Arthritis. Hydrogen produced in the reaction may lead to hydrogen embrittlement. It can act as a catalyst in the absorption of atomic hydrogen in steel, promoting sulfide stress cracking (SSC) in high-strength steels. In some cases, the odor may be noticeable only when the water is initially turned on or when hot water is run.