Heavy metal pollution in sediment from the Seto Inland Sea, Japan

Hoshika, Akira; Shiozawa, Takayuki; Kawana, Kichiichiro; Tanimoto, Terumi

doi:10.1016/0025-326x(91)90657-e

Cited by 22 publications

(8 citation statements)

References 1 publication

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“…The observed decline in heavy metal concentrations reflects the results of environmental regulation by the Japanese government enforced after the late 1960s. All of the above features regarding the temporal heavy metal distributions in Osaka Bay correspond well with the previous study carried out in the same coastal area (Yasuhara and Yamazaki, 2005) and also with situations recognized in other areas of the Japanese metropolitan bay (Matsumoto, 1983;Hirao et al, 1986;Hoshika et al, 1991). This clearly indicated that temporal trend of heavy metal accumulation during 20th century is similar over Japanese metropolitan bays and confirmed that our age calculation is satisfactory.…”

Section: Heavy Metal Profile For Sediment Coressupporting

confidence: 91%

“…Accumulation rates of the bottom sediments as determined by 210 Pb and 137 Cs chronologies (Matsumoto and Yokota, 1978;Yasuhara and Yamazaki, 2005) displayed wide variation from 0.12 cm yr −1 to 0.61 cm yr −1 all over the bay areas with an average rate of 0.38 cm y −1 (n = 6). Bulk chemical analysis of some sediment cores has shown that the highest metal concentrations are typically observed in fractions dating from the 1960s-1970s (Hoshika et al, 1991;Yasuhara and Yamazaki, 2005).…”

Section: Study Areamentioning

confidence: 99%

“…In Japan, heavy metal pollution in metropolitan bay area was targeted in a number of research projects during the 1970s to 1980s to assess the environmental impact during the period of high economic growth in Japan (1955Japan ( to 1973 (Kitano et al, 1980;Hirao et al, 1986;Hoshika et al, 1991;Yasuhara and Yamazaki, 2005). Importantly, these studies have clearly demonstrated that metal pollution in Japanese metropolitan (i.e., Tokyo and Osaka) bays peaked around 1970 and has declined since then.…”

Section: Introductionmentioning

confidence: 98%

See 2 more Smart Citations

Historical record of heavy metal pollution deduced by lead isotope ratios in core sediments from the Osaka Bay, Japan

Hosono

Okamura

et al. 2010

Journal of Geochemical Exploration

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Section: Heavy Metal Profile For Sediment Coressupporting

confidence: 91%

Section: Study Areamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Historical record of heavy metal pollution deduced by lead isotope ratios in core sediments from the Osaka Bay, Japan

Hosono

Okamura

et al. 2010

Journal of Geochemical Exploration

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“…Small amounts of PUFA which are biomarkers of microeukaryotes (46) in sediments were most probably due to the organic pollution and eutrophication in the bay (19-21, 38, 39). Furthermore, the decomposition of appreciable amounts of organic matter in the water column leads to the depletion of dissolved oxygen in the overlaying water and the high organic carbon contents in sediments of Osaka Bay induced the anoxic conditions (19,20). In such an organically contaminated and oxygen-depleted environment, the presence of microeukaryotes in the surface sediments may be expected to be restricted.…”

Section: Discussionmentioning

confidence: 99%

Characterization of Microbial Community Structure in the Surface Sediment of Osaka Bay, Japan, by Phospholipid Fatty Acid Analysis

Rajendran

Matsuda

Urushigawa³

et al. 1994

Appl Environ Microbiol

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Twenty-eight sediment samples collected from Osaka Bay, Japan, were analyzed for phospholipid esterlinked fatty acids (PLFA) to determine regional differences in microbial community structure of the bay. The abundance of three major groups of C10 to Clg PLFA (saturated, branched, and monounsaturated PLFA), which accounted for 84 to 97% of the total PLFA, indicated the predominance of prokaryotes in the sediment. The distribution of six clusters obtained by similarity analysis in the bay revealed a marked regional distribution in the PLFA profiles. Total PLFA concentrations (0.56 to 2.97 ,g/g [dry weight] of the sediment) in sediments also showed marked variation among the stations, with higher concentrations of total PLFA in the central part of the bay. The biomass, calculated on the basis of total PLFA concentration, ranged from 0.25 x 108 to 1.35 x 108 cells per g (dry weight) of the sediment. The relative dominance of microbial groups in sediments was described by using the reported bacterial biomarker fatty acids. Very small amounts of the characteristic PLFA of microeukaryotes in sediments indicated the restricted distribution of microeukaryotes. By examining the distribution of clusters and groups of microorganisms in the bay, there were two characteristics of the distribution pattern: (i) the predominance of anaerobic bacteria and gram-positive prokaryotes, characterized by the high proportions of branched PLFA in the eastern and northeastern sides of the bay, where the reported concentrations of pollutants were also high, and (ii) the predominance of aerobic prokaryotes and eukaryotes, except for a few stations, in the western and southwestern sides of the bay, as evidenced by the large amounts of monounsaturated PLFA. Such significant regional differences in microbial community structure of the bay indicate shifts in microbial community structure.

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“…Menurut (Palar, 2004) salinitas yang rendah akan mengalami peningkatan konsentrasi ion logam berat pada perairan dan menyebabkan penurunan pembentukan ion khlorida. Hoshika et al (1991) Kandungan logam berat pada air laut Data hasil analisis kandungan logam berat Cd dan Pb di air menunjukkan bahwa kandungan Cd di air laut lebih tinggi daripada Pb. Kandungan Cd tertinggi terdapat di Stasiun 1, sebesar 0.39±0.00 mg/l dan terendah di stasiun 3 dan 6, sebesar 0.29±0.01 mg/l.…”

Section: Gambar 2 Tambang Inkonvensional (Ti) Apungunclassified

Bioakumulasi timbal (Pb) dan cadmium (Cd) pada Lamun Cymodocea serrulata di Perairan Bangka Selatan

Sari

Rosalina

Adi

2017

Depik

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Abstract. The purpose of this study was to measure the heavy metal content of cadmium (Cd) and lead (Pb) Abstrak. Penelitian ini bertujuan untuk mengukur kandungan logam berat cadmium (Cd) dan timbal (Pb) pada air, sedimen dan lamun Cymodocea serrulata. Penelitian dilakukan di 2 lokasi di Kabupaten Bangka Selatan, yaitu Desa Pasir Putih dan Tanjung Kerasak. Metode Penelitian merupakan penelitian survei dengan pendekatan kuantitatif. Sampling dalam penelitian ini meliputi sampling kualitas, pengambilan sampel air, sedimen dan lamun menggunakan metode Purposive Random Sampling. Pengukuran data kualitas air dilakukan secara insitu. Pengambilan sampel lamun dilakukan dengan metode transect. Sampel air, sedimen dan lamun dianalisis menggunakan Atomic Absorption Spectrophotometer (AAS). Hasil analisis logam berat Cd dan Pb di air menunjukkan bahwa konsentrasi Cd di air lebih tinggi daripada Pb, dengan kisaran 0,29⎼0,39 mg/l. Konsentrasi logam berat tertinggi pada sedimen yaitu Pb, berkisar antara 4,74⎼7,68 mg/kg. Konsentrasi Cd tertinggi terdeteksi pada bagian daun lamun dengan kisaran 1,76⎼2,44 mg/kg, sedangkan konsentrasi Pb tertinggi pada akar lamun berkisar antara 1,94 ⎼ 6,52 mg/kg. Tingginya kandungan logam berat Cd dan Pb pada bagian lamun jika dibandingkan di air dan sedimen, menunjukkan bahwa lamun mengakumulasi logam yang berasal dari air dan sedimen. Nilai faktor biokonsentrasi (BCF) menunjukkan bahwa daun lamun dapat mengakumulasi logam Cd sebesar 6,16 dan logam Pb sebesar 5,31. Nilai BCF akar lamun dan logam berat menunjukkan bahwa akar lamun mampu mengakumulasi logam Cd sebesar 0,53 dan logam Pb sebesar 0,55.

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Heavy metal pollution in sediment from the Seto Inland Sea, Japan

Cited by 22 publications

References 1 publication

Historical record of heavy metal pollution deduced by lead isotope ratios in core sediments from the Osaka Bay, Japan

Historical record of heavy metal pollution deduced by lead isotope ratios in core sediments from the Osaka Bay, Japan

Characterization of Microbial Community Structure in the Surface Sediment of Osaka Bay, Japan, by Phospholipid Fatty Acid Analysis

Bioakumulasi timbal (Pb) dan cadmium (Cd) pada Lamun Cymodocea serrulata di Perairan Bangka Selatan

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