Yasuyuki Shibata
Biographic Data
| ID | 150385 |
|---|---|
| NAME | Yasuyuki Shibata |
| GIVEN NAMES | Yasuyuki |
| FAMILY NAME | Shibata |
| SIGNATURE | SHIBATA Y |
| AFFILIATIONS | National Institute for Environmental Studies |
| ORCID | 0000-0001-9160-0017 |
| VERIFIED | Yes |
| TOTAL WORKS | 22 |
| TOTAL CITATIONS | 132 |
| AUTHOR COUNT | 22 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2001 |
| LATEST PUBLICATION YEAR | 2024 |
| H-INDEX | 5 |
Source Apportionment of Atmospheric and Sedimentary Pahs From Kolkata, India Using Compound-Class-Specific Radiocarbon Analysis (Ccsra)
Polycyclic aromatic hydrocarbons (PAHs) are major air pollutants that are ubiquitously produced by the combustion of organic materials, and it is extremely important to identify their pollution sources. In this study, molecular fingerprinting and compound class-specific radiocarbon dating (CCSRA) were performed on PAHs from canal sediments and air samples collected in Kolkata, India’s third largest city (population approximately 16 million), wher…
Long-term impact of the 2011 Great East Japan Earthquake and tsunami on functional disability among older people
It has been unclear whether the prevalence of disability is higher in an area affected by natural disaster than in other areas even if more than one year has passed since the disaster. The aim of this ecological study was to examine whether the rate of increase in disability prevalence among the older population was higher in disaster-stricken areas during the 3 years after the Great East Japan Earthquake (GEJE) and tsunami. This analysis used pu…
Rationale and study design of the Japan environment and children’s study (Jecs)
Through JECS, chemical substances to which children are exposed during the fetal stage or early childhood will be identified. The JECS results will be translated to better risk assessment and management to provide healthy environment for next generations
Variation of Δ 14 C and δ 13 C Values of Dissolved Humic and Fulvic Acids in the Tokachi River System in Northern Japan
Characteristics of dissolved humic and fulvic acids in river waters were studied during 2003–2005 at 4 sites located in the headwaters and in the upper and lower Tokachi River, including a lowland tributary site. Fulvic acids from the headwaters to downstream areas have similar elemental composition and 13 C-NMR spectra. Humic acids have similar characteristics in the Tokachi River system. In contrast, δ 13 C and Δ 14 C values exhibit a decreasin…
Effects of Vegetation Switch and Subsequent Change in Soil Invertebrate Composition on Soil Carbon Accumulation Patterns, Revealed by Radiocarbon Concentrations
Vegetation types strongly affect soil organic carbon (SOC) accumulation in the terrestrial ecosystem through multiple factors such as litter quality and soil biodiversity. However, the roles of soil fauna in SOC accumulation remain unclear. The objectives of this study were to (1) examine how changes in litter types and soil animal communities affect SOC accumulation in continuously forested or vegetation-switched forest areas; and (2) discuss th…
Spatial Distribution of Δ 14 C Values of Organic Matter in Surface Sediments Off Saru River in Northern Japan, One Year After a Flood Event in 2006
Dispersion and deposition of terrestrial organic matter by flooding on the inner shelf were studied using C/N ratios, δ 13 C, and Δ 14 C values of sedimentary organic matter. Surface sediment samples (top 2 cm) were collected from coastal areas near the Saru River in southwestern Hokkaido, northern Japan, 1 yr after a flood event in 2006. Riverine suspended solids were also collected at a fixed station downstream during 2006–2008. Sandy sediments…
The Effects of Rainfall on Carbon Isotopes of POC in the Teshio River, Northern Japan
During a rainfall event in early September 2006, the transport behavior of particulate organic carbon (POC) in a small river (Teshio River, northern Japan) with alluvial plain and forest characteristics was investigated chiefly with carbon isotopes. The radiocarbon (Δ 14 C value) of POC varied widely from –56%‰ at the beginning of the rain event to –10%‰ at peak rainfall. The Δ 14 C values have a positive correlation with C/N ratios and a negativ…
High Contribution of Recalcitrant Organic Matter to DOC in a Japanese Oligotrophic Lake Revealed by 14 C Measurements
Carbon isotopes ( 14 C and 13 C) of dissolved organic carbon (DOC) in a Japanese oligotrophic lake (Lake Towada) were measured to study the origin and cycling of dissolved organic matter (DOM) in Lake Towada. Lake water samples were collected at 3 depths (0, 30, and 80 or 85 m) during 4 months (April, June, August, and October) in 2006. 14 C measurements of DOC were performed by accelerator mass spectrometry (AMS) at the National Institute for En…
Sphagnum peatland development at their southern climatic range in West Siberia
A region of western Siberia is vulnerable to the predicted climatic change which may induce an important modification to the carbon balance in wetland ecosystems. This study focuses on the evaluation of both the long-term and contemporary trends of peat (carbon) accumulation and its patterns at the southern climatic range of Sphagnum peatlands in western Siberia. Visible and physical features of peat and detailed reconstructions of successional c…
Tropical South China Sea Surface 14 C Record in an Annually-Banded Coral
A surface-water Δ 14 C record of AD 1948–1999 in the tropical South China Sea (SCS) has been reconstructed from accelerator mass spectrometric radiocarbon measurements of annual bands of a Pontes coral collected from Con Dao Island, Vietnam. Results gave the following Δ 14 C time series: a steady state of −47.8 ± 2.8‰ (mean ± SD, n = 8) during 1948–1955 (i.e. in the pre-bomb period); a sharp increase during 1956–1966; a gradual increase during 19…
Radiocarbon Marine Reservoir Ages in the Northwestern Pacific Off Hokkaido Island, Japan, During the Last Deglacial Period
We measured radiocarbon ages of planktic foraminifera in 4 sediment cores from the northwestern Pacific region off northern Japan in order to estimate marine reservoir ages during the B⊘lling-Aller⊘d period. The ages of deglacial tephra markers from 2 Japanese source volcanoes identified in these sediment cores had been previously estimated from 14 C ages of terrestrial charcoal and buried forests. By comparing the foraminiferal and tephra ages, …
Seasonal Variation in Sources of Dissolved Organic Carbon in a Lacustrine Environment Revealed by Paired Isotopic Measurements (Δ 14 C and δ 13 C)
To investigate the sources and cycling of dissolved organic carbon (DOC) in a lacustrine environment, isotopic measurements of 14 C and 13 C in DOC were carried out for Lake Kasumigaura—which is famous as a very eutrophic and shallow (mean depth 4.0 m) lake in central Japan—and its tributary rivers. Lake and river samples were collected in the spring and autumn (May and September) of 2003. The Δ 14 C measurements of DOC were performed using the a…
Chronology of the Yayoi skeletal remains from the Kanto district, Japan
Radiocarbon ages were determined for 25 samples of human skeletal remains previously assigned or attributable to the Yayoi period (tentatively considered ca. 500 BC to 300 AD) of the Kanto district, Japan. Suzuki (1969) and others, predominantly on cranial morphology, recognized that the Kanto Yayoi series contains three morphological groups: the native Jomon, transitional, and Kofun types. Morphological variation of the Kanto Yayoi people was co…
Seasonal Radiocarbon Variation of Surface Seawater Recorded in A Coral from Kikai Island, Subtropical Northwestern Pacific
A coral radiocarbon (Δ 14 C) investigation with a high time-resolution is crucial for reconstructing secular and seasonal Δ 14 C changes in the surface seawater which potentially reflect ocean circulations and dynamic ocean-atmosphere interactions. The Δ 14 C values of a modern coral ( Porites sp.) from Kikai Island, southern Japan, in the subtropical northwestern Pacific, were determined for the period of 1991-1998 at a monthly resolution. A cor…
Temporal Variation of Radiocarbon Concentration in Airborne Particulate Matter in Tokyo
The temporal radiocarbon variation (in terms of percent Modern Carbon: pMC) of size-fractionated airborne particulate matter (APM) collected in Tokyo between April 2002 and February 2003 was analyzed in order to get an insight into the sources of carbonaceous particles. Results indicated significant biogenic origins (approximately 40 pMC on average). In general, the seasonal and particle size variations in pMC were relatively small, with 2 except…
Seasonal and Secular Variations of Atmospheric 14 Co 2 Over the Western Pacific Since 1994
Air sample collections over the western Pacific have continued since 1992 as a part of Center for Global Environmental Research, National Institute for Environmental Studies (CGER-NIES) global environmental monitoring program. The air samples collected on the Japan-Australia transect made it possible to trace the seasonal and secular 14 CO 2 variations, as well as an increasing trend of greenhouse gases over the western Pacific. A subset of CO 2 …
Correlation between Indian Ocean summer monsoon and North Atlantic climate during the Holocene
Isotopic evidence of inland-water fishing by a Jomon population excavated from the Boji site, Nagano, Japan
Radiocarbon Marine Reservoir Effect in Human Remains from the Kitakogane Site, Hokkaido, Japan
Radiocarbon and Stable Isotope Analyses on the Earliest Jomon Skeletons from the Tochibara Rockshelter, Nagano, Japan
This study presents the results of carbon and nitrogen isotopic analyses of six human skeletons excavated from the Tochibara rockshelter (Nagano, Japan). The human skeletons were reported to be accompanied by “Oshigata-mon” type pottery dating to the Earliest Jomon period (8900 BP ≃ 6600 BP). A radiocarbon determination from charcoal associated with the human remains was reported to be 8650 ± 180 BP (GaK-1056). However, the depositional context o…
Compound-Specific Radiocarbon Ages of Fatty Acids in Marine Sediments from the Western North Pacific
Compound-specific radiocarbon analysis of five fatty-acid biomarkers was conducted for marine sediments collected from the western North Pacific. The fatty acids (C 12 to C 34 ) showed a typical bimodal distribution pattern with two maxima at C 16 and C 26 . Their carbon isotopic compositions ranged from −25.1‰ (C 16 ) to −31.8‰ (C 28 ), suggesting that they derived from terrestrial higher plants and marine organisms. A large variations of 14 C a…
Marine Radiocarbon Reservoir Effect in the Western North Pacific Observed in Archaeological Fauna
Faunal remains originating from terrestrial and marine mammals, and belonging to the same archaeological deposits were compared to evaluate the marine radiocarbon reservoir ages around the Hokkaido island, Japan. From five shell middens of different ages from the Jomon period (4900 BP) to the Ainu cultural period (800 BP), 107 animal bone samples were selected for radiocarbon measurements. The apparent age differences between Japanese deer and no…
Isotopic evidence of inland-water fishing by a Jomon population excavated from the Boji site, Nagano, Japan
Radiocarbon Marine Reservoir Effect in Human Remains from the Kitakogane Site, Hokkaido, Japan
Chronology of the Yayoi skeletal remains from the Kanto district, Japan
Radiocarbon ages were determined for 25 samples of human skeletal remains previously assigned or attributable to the Yayoi period (tentatively considered ca. 500 BC to 300 AD) of the Kanto district, Japan. Suzuki (1969) and others, predominantly on cranial morphology, recognized that the Kanto Yayoi series contains three morphological groups: the native Jomon, transitional, and Kofun types. Morphological variation of the Kanto Yayoi people was co…
Marine Radiocarbon Reservoir Effect in the Western North Pacific Observed in Archaeological Fauna
Faunal remains originating from terrestrial and marine mammals, and belonging to the same archaeological deposits were compared to evaluate the marine radiocarbon reservoir ages around the Hokkaido island, Japan. From five shell middens of different ages from the Jomon period (4900 BP) to the Ainu cultural period (800 BP), 107 animal bone samples were selected for radiocarbon measurements. The apparent age differences between Japanese deer and no…
Radiocarbon and Stable Isotope Analyses on the Earliest Jomon Skeletons from the Tochibara Rockshelter, Nagano, Japan
This study presents the results of carbon and nitrogen isotopic analyses of six human skeletons excavated from the Tochibara rockshelter (Nagano, Japan). The human skeletons were reported to be accompanied by “Oshigata-mon” type pottery dating to the Earliest Jomon period (8900 BP ≃ 6600 BP). A radiocarbon determination from charcoal associated with the human remains was reported to be 8650 ± 180 BP (GaK-1056). However, the depositional context o…
Seasonal Radiocarbon Variation of Surface Seawater Recorded in A Coral from Kikai Island, Subtropical Northwestern Pacific
A coral radiocarbon (Δ 14 C) investigation with a high time-resolution is crucial for reconstructing secular and seasonal Δ 14 C changes in the surface seawater which potentially reflect ocean circulations and dynamic ocean-atmosphere interactions. The Δ 14 C values of a modern coral ( Porites sp.) from Kikai Island, southern Japan, in the subtropical northwestern Pacific, were determined for the period of 1991-1998 at a monthly resolution. A cor…
Seasonal and Secular Variations of Atmospheric 14 Co 2 Over the Western Pacific Since 1994
Air sample collections over the western Pacific have continued since 1992 as a part of Center for Global Environmental Research, National Institute for Environmental Studies (CGER-NIES) global environmental monitoring program. The air samples collected on the Japan-Australia transect made it possible to trace the seasonal and secular 14 CO 2 variations, as well as an increasing trend of greenhouse gases over the western Pacific. A subset of CO 2 …
Compound-Specific Radiocarbon Ages of Fatty Acids in Marine Sediments from the Western North Pacific
Compound-specific radiocarbon analysis of five fatty-acid biomarkers was conducted for marine sediments collected from the western North Pacific. The fatty acids (C 12 to C 34 ) showed a typical bimodal distribution pattern with two maxima at C 16 and C 26 . Their carbon isotopic compositions ranged from −25.1‰ (C 16 ) to −31.8‰ (C 28 ), suggesting that they derived from terrestrial higher plants and marine organisms. A large variations of 14 C a…
Long-term impact of the 2011 Great East Japan Earthquake and tsunami on functional disability among older people
It has been unclear whether the prevalence of disability is higher in an area affected by natural disaster than in other areas even if more than one year has passed since the disaster. The aim of this ecological study was to examine whether the rate of increase in disability prevalence among the older population was higher in disaster-stricken areas during the 3 years after the Great East Japan Earthquake (GEJE) and tsunami. This analysis used pu…
High Contribution of Recalcitrant Organic Matter to DOC in a Japanese Oligotrophic Lake Revealed by 14 C Measurements
Carbon isotopes ( 14 C and 13 C) of dissolved organic carbon (DOC) in a Japanese oligotrophic lake (Lake Towada) were measured to study the origin and cycling of dissolved organic matter (DOM) in Lake Towada. Lake water samples were collected at 3 depths (0, 30, and 80 or 85 m) during 4 months (April, June, August, and October) in 2006. 14 C measurements of DOC were performed by accelerator mass spectrometry (AMS) at the National Institute for En…
Tropical South China Sea Surface 14 C Record in an Annually-Banded Coral
A surface-water Δ 14 C record of AD 1948–1999 in the tropical South China Sea (SCS) has been reconstructed from accelerator mass spectrometric radiocarbon measurements of annual bands of a Pontes coral collected from Con Dao Island, Vietnam. Results gave the following Δ 14 C time series: a steady state of −47.8 ± 2.8‰ (mean ± SD, n = 8) during 1948–1955 (i.e. in the pre-bomb period); a sharp increase during 1956–1966; a gradual increase during 19…
Compound-Specific Radiocarbon Ages of Fatty Acids in Marine Sediments from the Western North Pacific
Compound-specific radiocarbon analysis of five fatty-acid biomarkers was conducted for marine sediments collected from the western North Pacific. The fatty acids (C 12 to C 34 ) showed a typical bimodal distribution pattern with two maxima at C 16 and C 26 . Their carbon isotopic compositions ranged from −25.1‰ (C 16 ) to −31.8‰ (C 28 ), suggesting that they derived from terrestrial higher plants and marine organisms. A large variations of 14 C a…
Marine Radiocarbon Reservoir Effect in the Western North Pacific Observed in Archaeological Fauna
Faunal remains originating from terrestrial and marine mammals, and belonging to the same archaeological deposits were compared to evaluate the marine radiocarbon reservoir ages around the Hokkaido island, Japan. From five shell middens of different ages from the Jomon period (4900 BP) to the Ainu cultural period (800 BP), 107 animal bone samples were selected for radiocarbon measurements. The apparent age differences between Japanese deer and no…
Radiocarbon Marine Reservoir Effect in Human Remains from the Kitakogane Site, Hokkaido, Japan
Radiocarbon and Stable Isotope Analyses on the Earliest Jomon Skeletons from the Tochibara Rockshelter, Nagano, Japan
This study presents the results of carbon and nitrogen isotopic analyses of six human skeletons excavated from the Tochibara rockshelter (Nagano, Japan). The human skeletons were reported to be accompanied by “Oshigata-mon” type pottery dating to the Earliest Jomon period (8900 BP ≃ 6600 BP). A radiocarbon determination from charcoal associated with the human remains was reported to be 8650 ± 180 BP (GaK-1056). However, the depositional context o…
Correlation between Indian Ocean summer monsoon and North Atlantic climate during the Holocene
Isotopic evidence of inland-water fishing by a Jomon population excavated from the Boji site, Nagano, Japan
Seasonal Radiocarbon Variation of Surface Seawater Recorded in A Coral from Kikai Island, Subtropical Northwestern Pacific
A coral radiocarbon (Δ 14 C) investigation with a high time-resolution is crucial for reconstructing secular and seasonal Δ 14 C changes in the surface seawater which potentially reflect ocean circulations and dynamic ocean-atmosphere interactions. The Δ 14 C values of a modern coral ( Porites sp.) from Kikai Island, southern Japan, in the subtropical northwestern Pacific, were determined for the period of 1991-1998 at a monthly resolution. A cor…
Temporal Variation of Radiocarbon Concentration in Airborne Particulate Matter in Tokyo
The temporal radiocarbon variation (in terms of percent Modern Carbon: pMC) of size-fractionated airborne particulate matter (APM) collected in Tokyo between April 2002 and February 2003 was analyzed in order to get an insight into the sources of carbonaceous particles. Results indicated significant biogenic origins (approximately 40 pMC on average). In general, the seasonal and particle size variations in pMC were relatively small, with 2 except…
Seasonal and Secular Variations of Atmospheric 14 Co 2 Over the Western Pacific Since 1994
Air sample collections over the western Pacific have continued since 1992 as a part of Center for Global Environmental Research, National Institute for Environmental Studies (CGER-NIES) global environmental monitoring program. The air samples collected on the Japan-Australia transect made it possible to trace the seasonal and secular 14 CO 2 variations, as well as an increasing trend of greenhouse gases over the western Pacific. A subset of CO 2 …
Chronology of the Yayoi skeletal remains from the Kanto district, Japan
Radiocarbon ages were determined for 25 samples of human skeletal remains previously assigned or attributable to the Yayoi period (tentatively considered ca. 500 BC to 300 AD) of the Kanto district, Japan. Suzuki (1969) and others, predominantly on cranial morphology, recognized that the Kanto Yayoi series contains three morphological groups: the native Jomon, transitional, and Kofun types. Morphological variation of the Kanto Yayoi people was co…
Sphagnum peatland development at their southern climatic range in West Siberia
A region of western Siberia is vulnerable to the predicted climatic change which may induce an important modification to the carbon balance in wetland ecosystems. This study focuses on the evaluation of both the long-term and contemporary trends of peat (carbon) accumulation and its patterns at the southern climatic range of Sphagnum peatlands in western Siberia. Visible and physical features of peat and detailed reconstructions of successional c…
Tropical South China Sea Surface 14 C Record in an Annually-Banded Coral
A surface-water Δ 14 C record of AD 1948–1999 in the tropical South China Sea (SCS) has been reconstructed from accelerator mass spectrometric radiocarbon measurements of annual bands of a Pontes coral collected from Con Dao Island, Vietnam. Results gave the following Δ 14 C time series: a steady state of −47.8 ± 2.8‰ (mean ± SD, n = 8) during 1948–1955 (i.e. in the pre-bomb period); a sharp increase during 1956–1966; a gradual increase during 19…
Radiocarbon Marine Reservoir Ages in the Northwestern Pacific Off Hokkaido Island, Japan, During the Last Deglacial Period
We measured radiocarbon ages of planktic foraminifera in 4 sediment cores from the northwestern Pacific region off northern Japan in order to estimate marine reservoir ages during the B⊘lling-Aller⊘d period. The ages of deglacial tephra markers from 2 Japanese source volcanoes identified in these sediment cores had been previously estimated from 14 C ages of terrestrial charcoal and buried forests. By comparing the foraminiferal and tephra ages, …
Seasonal Variation in Sources of Dissolved Organic Carbon in a Lacustrine Environment Revealed by Paired Isotopic Measurements (Δ 14 C and δ 13 C)
To investigate the sources and cycling of dissolved organic carbon (DOC) in a lacustrine environment, isotopic measurements of 14 C and 13 C in DOC were carried out for Lake Kasumigaura—which is famous as a very eutrophic and shallow (mean depth 4.0 m) lake in central Japan—and its tributary rivers. Lake and river samples were collected in the spring and autumn (May and September) of 2003. The Δ 14 C measurements of DOC were performed using the a…
Effects of Vegetation Switch and Subsequent Change in Soil Invertebrate Composition on Soil Carbon Accumulation Patterns, Revealed by Radiocarbon Concentrations
Vegetation types strongly affect soil organic carbon (SOC) accumulation in the terrestrial ecosystem through multiple factors such as litter quality and soil biodiversity. However, the roles of soil fauna in SOC accumulation remain unclear. The objectives of this study were to (1) examine how changes in litter types and soil animal communities affect SOC accumulation in continuously forested or vegetation-switched forest areas; and (2) discuss th…
Spatial Distribution of Δ 14 C Values of Organic Matter in Surface Sediments Off Saru River in Northern Japan, One Year After a Flood Event in 2006
Dispersion and deposition of terrestrial organic matter by flooding on the inner shelf were studied using C/N ratios, δ 13 C, and Δ 14 C values of sedimentary organic matter. Surface sediment samples (top 2 cm) were collected from coastal areas near the Saru River in southwestern Hokkaido, northern Japan, 1 yr after a flood event in 2006. Riverine suspended solids were also collected at a fixed station downstream during 2006–2008. Sandy sediments…
The Effects of Rainfall on Carbon Isotopes of POC in the Teshio River, Northern Japan
During a rainfall event in early September 2006, the transport behavior of particulate organic carbon (POC) in a small river (Teshio River, northern Japan) with alluvial plain and forest characteristics was investigated chiefly with carbon isotopes. The radiocarbon (Δ 14 C value) of POC varied widely from –56%‰ at the beginning of the rain event to –10%‰ at peak rainfall. The Δ 14 C values have a positive correlation with C/N ratios and a negativ…
High Contribution of Recalcitrant Organic Matter to DOC in a Japanese Oligotrophic Lake Revealed by 14 C Measurements
Carbon isotopes ( 14 C and 13 C) of dissolved organic carbon (DOC) in a Japanese oligotrophic lake (Lake Towada) were measured to study the origin and cycling of dissolved organic matter (DOM) in Lake Towada. Lake water samples were collected at 3 depths (0, 30, and 80 or 85 m) during 4 months (April, June, August, and October) in 2006. 14 C measurements of DOC were performed by accelerator mass spectrometry (AMS) at the National Institute for En…
Variation of Δ 14 C and δ 13 C Values of Dissolved Humic and Fulvic Acids in the Tokachi River System in Northern Japan
Characteristics of dissolved humic and fulvic acids in river waters were studied during 2003–2005 at 4 sites located in the headwaters and in the upper and lower Tokachi River, including a lowland tributary site. Fulvic acids from the headwaters to downstream areas have similar elemental composition and 13 C-NMR spectra. Humic acids have similar characteristics in the Tokachi River system. In contrast, δ 13 C and Δ 14 C values exhibit a decreasin…
Rationale and study design of the Japan environment and children’s study (Jecs)
Through JECS, chemical substances to which children are exposed during the fetal stage or early childhood will be identified. The JECS results will be translated to better risk assessment and management to provide healthy environment for next generations
Long-term impact of the 2011 Great East Japan Earthquake and tsunami on functional disability among older people
It has been unclear whether the prevalence of disability is higher in an area affected by natural disaster than in other areas even if more than one year has passed since the disaster. The aim of this ecological study was to examine whether the rate of increase in disability prevalence among the older population was higher in disaster-stricken areas during the 3 years after the Great East Japan Earthquake (GEJE) and tsunami. This analysis used pu…
Source Apportionment of Atmospheric and Sedimentary Pahs From Kolkata, India Using Compound-Class-Specific Radiocarbon Analysis (Ccsra)
Polycyclic aromatic hydrocarbons (PAHs) are major air pollutants that are ubiquitously produced by the combustion of organic materials, and it is extremely important to identify their pollution sources. In this study, molecular fingerprinting and compound class-specific radiocarbon dating (CCSRA) were performed on PAHs from canal sediments and air samples collected in Kolkata, India’s third largest city (population approximately 16 million), wher…
Geology (18 works) · Radiocarbon dating (13 works) · Isotope Analysis in Ecology (12 works) · Geography (11 works) · Oceanography (10 works) · Ecology (9 works) · Environmental Science (9 works) · Chemistry (8 works) · Environmental Chemistry (8 works) · Geology and Paleoclimatology Research (8 works)