Effects of acid wastes from titanium dioxide production on biomass and species richness of benthic algae

✍ Scribed by Tor Bokn

• Publisher: Springer
• Year: 1990
• Tongue: English
• Weight: 571 KB
• Volume: 204-205
• Category: Article
• ISSN: 1573-5141
• DOI: 10.1007/bf00040234

✦ Synopsis

Titanium dioxide wastes are suspected to be toxic to rocky shore communities in an estuary in southeast Norway . An experimental project lasting two years examined whether titanium dioxide wastes affected recolonization by rocky shore organisms . The experiments were performed in situ in six tanks (each with 9 m3 brackish water) at two different levels of salinity . Three different concentrations of industrial waste water were used . The growth season in 1986 was dry and sunny compared to 1987, causing reduction of growth on exposed granite chips compared to controls . At the two highest waste concentrations in the tanks, Fucus serratus was observed with necrotic tissue both years, and in 1986 benthic diatoms were scarce .