Analisis Kandungan Logam Zink (Zn) Dan Timbal (Pb) Dalam Air Laut Pesisir Pantai Mamboro Kecamatan Palu Utara

Tatik Rahmadani; Sri Mulyani Sabang; Irwan Said

Analisis Kandungan Logam Zink (Zn) Dan Timbal (Pb) Dalam Air Laut Pesisir Pantai Mamboro Kecamatan Palu Utara

Tatik Rahmadani, Sri Mulyani Sabang, Irwan Said

Abstract

This study aims to determine concentration of zinc (Zn) and lead (Pb) metals on the sea water in coastal areas Mamboro District of North Palu. The method used was a spectrophotometry using atomic absorption spectrophotometer (AAS). Seawater samples were taken from three different points, is A (5 meter), B (10 meter), and C (15 meter) within ± 5 m from the coastline, and sampling started from the edge of the harbor of cooking oil companies. Results of the analysis of zinc contents from the three points are 0.155 mg/L at point A, 0.126 mg/L at point B, and 0.109 mg/L at point C, respectively. Moreover, the lead contents are 0.35 mg/L at point A, 0.391 mg/L at point B, and 0.433 mg/L at point C , respectively. Concentration of zinc metal on the sea water in Mamboro coastal marine ranged from 0.109 mg/L – 0.155 mg/L, which is higher than the threshold value zinc metal, 0.01 mg/L, where concentration of lead metal on the sea water in Mamboro coastal marine ranged from 0.35 mg/L – 0.433 mg/L, which is higher than the threshold value of lead metal, 0.025 mg/L.

Keywords

Zinc (Zn) and lead (Pb), sea water, Atomic absorption spectrophotometer (AAS)

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