What are the dangers of “Menhaden” and similar types of fish, and what standards apply, if any?
29 CFR 1918.94(f) Catch of menhaden and similar species of fish, addresses longshoring operations aboard vessels engaged in the menhaden trade (or trade in similar species of fish). Menhaden is a term that refers to several species of trash fish which are used to produce, among other products, fertilizer, pet food and fish oil. As cargo, menhaden presents a health hazard to longshore workers because upon decomposition it generates hydrogen sulfide gas (H2S). 29 CFR 1918.94(f) does not apply to vessels that are using refrigerated holds for the storage of all cargo, because refrigeration prevents the menhaden from decomposing. This section requires that, before employees enter a hold that contains menhaden, the hold be tested for hydrogen sulfide and oxygen deficiency. These tests must be performed by designated supervisory personnel, trained and competent in the nature of hazards, and in the use of relevant test equipment and procedures. The maximum allowable atmospheric concentration o
