Sago Street during the 1840s, there were numerous sago factories on the street. pith of the rumbia palm and made into flour that is used to make cakes. During the 1850s, there were thirty sago factories in the town which had a total output of 8,000 tons annually. Many of the sago factories were in the Sago Street area. In the late 19th century, the area was well known for its number of prostitute dens. By 1901, there were 14 brothels on the street alone. In the later part of the 20th century, the brothels vacated Sago Street and the shophouses underwent
Simultaneously extracted metals and Acid-volatile sulfide Life or Human Health Are Possible." The Ohio Environmental Protection Agency uses [SEM]/[AVS] in sediment quality guidelines for waters in that state. Simultaneously extracted metals and Acid-volatile sulfide Simultaneously extracted metals/Acid-volatile sulfide (SEM-AVS) is an approach used in the field of aquatic toxicology to assess the potential for metal ions found in sediment to cause toxic effects in organisms dwelling in the sediment. In this approach, the amounts of several heavy metals in a sediment sample are measured in a laboratory; at the same time, the amount of acid-volatile sulfide (sulfide which can be liberated from the sediment by treatment