Historical Changes and Responses to Human Activities of Polycyclic Aromatic Hydrocarbons in Lake Sediments from Northern China During the Past 100 Years
Polycyclic aromatic hydrocarbons (PAHs) are of concern globally because of their carcinogenic, teratogenic, mutagenic, and bio-accumulative effects. Northern China is one of the regions in China with a high density of lakes; however, the lake aquatic environment is becoming seriously deteriorated, especially from PAH pollution due to the intensification of human activities during the past 100 years. Therefore, the spatial distribution and historical changes in PAHs in lake sediments from northern China were analyzed to indicate their response to anthropogenic emissions and pollution reduction actions. The ω(PAHs) in lake sediments ranged from 18.2 to 1205.0 ng·g-1, and low molecular weight PAHs were the dominant compounds. PAH concentrations increased from the 1950s to a peak level in the 2000s, which was induced mainly by increased energy consumption and rapid economy development, with PAH levels decreasing subsequently in the last 10 years due to craft improvement of wastewater treatment plants and the promotion of new energy policies. Spatially, PAHs pollution in Northeast and North China was more serious than that in Northwest China due to the higher level of economic development and energy consumption. Source apportionment results revealed that historical PAH emissions transferred from biomass combustion to a mixture of coal and petroleum combustion. In addition, the results of ecological risk assessment showed that the synthetic sediment quality index (SeQI) of northern China ranged from 36 to 75, and North and Northeast China posed higher ecological risk than that in Northwest China, with phenanthrene (Phe), acenaphthylene (Ace), acenaphthylene (Acy), and dibenzo(a,h)anthracene (DahA) as the main risk contributors.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2022 |
|---|---|
| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:43 |
|---|---|
| Enthalten in: |
Huan jing ke xue= Huanjing kexue - 43(2022), 3 vom: 08. März, Seite 1404-1413 |
| Sprache: |
Chinesisch |
|---|
| Beteiligte Personen: |
Gong, Xiong-Hu [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
Ecological risk |
|---|
| Anmerkungen: |
Date Completed 09.03.2022 Date Revised 09.03.2022 published: Print Citation Status MEDLINE |
|---|
| doi: |
10.13227/j.hjkx.202106235 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM337891958 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM337891958 | ||
| 003 | DE-627 | ||
| 005 | 20231225235439.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231225s2022 xx |||||o 00| ||chi c | ||
| 024 | 7 | |a 10.13227/j.hjkx.202106235 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1126.xml |
| 035 | |a (DE-627)NLM337891958 | ||
| 035 | |a (NLM)35258204 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a chi | ||
| 100 | 1 | |a Gong, Xiong-Hu |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Historical Changes and Responses to Human Activities of Polycyclic Aromatic Hydrocarbons in Lake Sediments from Northern China During the Past 100 Years |
| 264 | 1 | |c 2022 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 09.03.2022 | ||
| 500 | |a Date Revised 09.03.2022 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Polycyclic aromatic hydrocarbons (PAHs) are of concern globally because of their carcinogenic, teratogenic, mutagenic, and bio-accumulative effects. Northern China is one of the regions in China with a high density of lakes; however, the lake aquatic environment is becoming seriously deteriorated, especially from PAH pollution due to the intensification of human activities during the past 100 years. Therefore, the spatial distribution and historical changes in PAHs in lake sediments from northern China were analyzed to indicate their response to anthropogenic emissions and pollution reduction actions. The ω(PAHs) in lake sediments ranged from 18.2 to 1205.0 ng·g-1, and low molecular weight PAHs were the dominant compounds. PAH concentrations increased from the 1950s to a peak level in the 2000s, which was induced mainly by increased energy consumption and rapid economy development, with PAH levels decreasing subsequently in the last 10 years due to craft improvement of wastewater treatment plants and the promotion of new energy policies. Spatially, PAHs pollution in Northeast and North China was more serious than that in Northwest China due to the higher level of economic development and energy consumption. Source apportionment results revealed that historical PAH emissions transferred from biomass combustion to a mixture of coal and petroleum combustion. In addition, the results of ecological risk assessment showed that the synthetic sediment quality index (SeQI) of northern China ranged from 36 to 75, and North and Northeast China posed higher ecological risk than that in Northwest China, with phenanthrene (Phe), acenaphthylene (Ace), acenaphthylene (Acy), and dibenzo(a,h)anthracene (DahA) as the main risk contributors | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a North China lakes | |
| 650 | 4 | |a ecological risk | |
| 650 | 4 | |a historical changes | |
| 650 | 4 | |a human activities | |
| 650 | 4 | |a polycyclic aromatic hydrocarbons (PAHs) | |
| 650 | 7 | |a Polycyclic Aromatic Hydrocarbons |2 NLM | |
| 650 | 7 | |a Water Pollutants, Chemical |2 NLM | |
| 700 | 1 | |a Zhao, Zhong-Hua |e verfasserin |4 aut | |
| 700 | 1 | |a Ding, Qi-Qi |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Lu |e verfasserin |4 aut | |
| 700 | 1 | |a Yao, Shu-Chun |e verfasserin |4 aut | |
| 700 | 1 | |a Xue, Bin |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Huan jing ke xue= Huanjing kexue |d 1993 |g 43(2022), 3 vom: 08. März, Seite 1404-1413 |w (DE-627)NLM083800301 |x 0250-3301 |7 nnns |
| 773 | 1 | 8 | |g volume:43 |g year:2022 |g number:3 |g day:08 |g month:03 |g pages:1404-1413 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.13227/j.hjkx.202106235 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 43 |j 2022 |e 3 |b 08 |c 03 |h 1404-1413 | ||