English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Mercury is a heavy metal that has the highest toxicity. The toxicity of mercury will increase at the time of entry into the water. This study aims to determine the percentage of death Tubifex tubifex exposed to HgCl 2  and determine LC50-48 hours of mercury in  Tubifex tubifex  worms. The study was divided into two stages, preliminary test and definitive toxicity acute test (LC50-48 h). Concentrations are used to test toxicities on a logarithmic scale. Observations were made every 24 hours for 48 hours. Mercury was detected by Atomic Absorption Spectrophotometer (AAS) method. The results showed that the increase in  Tubifex tubifex  mortality was directly proportional to the increase in HgCl 2  concentration. The use of probit obtained LC50-48 h at a mercury concentration of 83.15 ± 3.89 μg / L, can be categorized into heavy metals with high toxicity. The tendency of toxicity decreases with the length of exposure time.

Acute toxicity test and LC50 value of mercury on tubifex tubifex