AYU MAULINA, DINDA RIZKY (2022) KANDUNGAN LOGAM BERAT TIMBAL (Pb) DAN KADMIUM (Cd) PADA SEDIMEN DI PANTAI TRIMULYO DAN PANTAI TIRANG, SEMARANG (22IK316). Undergraduate thesis, Universitas Diponegoro.

Text COVER Dinda Rizky Ayu 22ik316.pdf Download (467kB)

Abstract

ABSTRAK
Dinda Rizky Ayu Maulina. 260 401 181 301 05. Kandungan Logam Berat
Timbal (Pb) dan Kadmium (Cd) pada Sedimen di Pantai Trimulyo dan Pantai
Tirang, Semarang (Delianis Pringgenies dan Dwi Haryanti)
Kandungan timbal (Pb) dan kadmium (Cd) di sedimen sebagian berasal
dari limbah industri yang masuk ke perairan dan terakumulasi di muara sungai.
Pantai Trimulyo berada di pesisir Semarang, dekat dengan Kawasan Industri
Terboyo yang berpotensi membuang limbah logam berat ke peraian. Pantai Tirang
juga berpotensi tercemar limbah logam berat dari industri di Kecamatan Tugu
yang masuk ke aliran Sungai Tapak. Penelitian ini bertujuan untuk mengetahui
kandungan logam Pb dan Cd pada sedimen di Pantai Trimulyo dan Pantai Tirang.
Penelitian dilakukan dengan metode survei eksploratif dan penentuan lokasi
pengamatan dengan metode purposive sampling. Sampel sedimen diambil
sebanyak 3 kali pengulangan disetiap lokasi dengan sediment core. Sampel
sedimen dianalisis di Laboratorium BBTPPI Semarang menggunakan alat Atomic
Absorption Spectrophotometer (AAS) untuk menentukan kadar logam Pb dan Cd
dalam sedimen. Hasil analisis kandungan logam Pb dalam sedimen menunjukkan
bahwa konsentrasi logam berat tertinggi ditemukan di Pantai Tirang sebesar 49,16
mg/kg dan Pantai Trimulyo memiliki kandungan Pb tertinggi 23,78 mg/kg. Hasil
analisis kandungan logam Cd dalam sedimen di Pantai Trimulyo dan Pantai
Tirang sebesar >0,050 mg/kg. Pengukuran parameter lingkungan (suhu, salinitas,
pH, DO, kecepatan arus dan kecerahan perairan) secara in situ menunjukkan
konstribusi terhadap kandungan logam berat pada sedimen. Secara keseluruhan,
kandungan logam berat Cd pada sedimen di setiap lokasi penelitian tidak
melebihi baku mutu, sedangkan kandungan logam berat pada sedimen yang
melebihi atau mendekati baku mutu yaitu logam berat timbal.
Kata kunci: Timbal, Kadmium, Sedimen, Pesisir Semarang

ABSTRACT
Dinda Rizky Ayu Maulina. 260 401 181 301 05. Content of Heavy Metals of
Lead (Pb) and Cadmium (Cd) in Sediment in the Trimulyo Beach and Tirang
Beach, Semarang (Delianis Pringgenies and Dwi Haryanti)
The sediments contain lead (Pb) and cadmium (Cd) from industrial waste
were often found to enter nearby waters and accumulate at river mouths..
Trimulyo Beach is adjacent to the Terboyo Industrial Estate on Semarang's coast,
which has the potential to dump heavy metal waste into the waters. Heavy metal
waste from industry in Tugu District that enters the Tapak River might also
pollute Tirang Beach. The aim of the study is to determine the Pb and Cd content
of sediments at Trimulyo and Tirang beaches. This research was conducted by
using an exploratory survey method, and the research site was determined using a
purposive sampling method. Using the sediment core, sediment samples were
collected in three replicatesin each location. The levels of Pb and Cd metals in
sediment samples were analysed using an Atomic Absorption Spectrophotometer
(AAS) at the Semarang BBTPPI Laboratory. The analysis of the metal content of
Pb in the sediment showed that Tirang Beach had the highest concentration of
heavy metal at 49.16 mg/kg, and Trimulyo Beach had the highest Pb content at
23.78 mg/kg. The results showed that the Cd metal content in sediments at
Trimulyo Beach and Tirang Beach was >0.050 mg/kg. Environmental parameters
measured in situ (temperature, salinity, pH, DO, current velocity, and water
clarity) made a contribution to the heavy metal content in the sediment. Overall,
the heavy metal content of Cd in the sediment at each research location did not
exceed the quality standard, while the lead heavy metal exceeded or approached
the quality standard.
Key Words: Lead, Cadmium, Sediment, Semarang Coast

Actions (login required)

View Item