Fossil-Fuel-Derived CO 2 Contribution to the Urban Atmosphere in Guangzhou, South China, Estimated by 14 CO 2 Observation, 2010–2011
Bibliographic Data
| ID | 20972374 |
|---|---|
| Authors | Ping Ding (0000-0001-5825-0932, Chinese Academy of Sciences), C D Shen, Chengde Shen (0000-0003-0400-2209, Chinese Academy of Sciences, corresponding author), W X Yi (Chinese Academy of Sciences), N Wang (0000-0002-2955-7588, University of Hong Kong), Xifeng Ding (0000-0003-4033-3881, Peking University), X F Ding, D P Fu, Dongpo Fu (0000-0001-9324-4247, Peking University), K X Liu (Peking University) |
| Year | 2013 |
| Volume | 55 |
| Issue | 2 |
| Pages | 791-803 |
| Publication date | 2013-01-01 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Radiocarbon (JOURNAL) |
| Journal identifiers | ISSN: 0033-8222 • E-ISSN: 1945-5755 |
| Publisher | Cambridge University Press (CUP) (PUBLISHER) |
| DOI | 10.1017/s0033822200057957 |
| OpenAlex | W2043892354 |
| Language | EN |
| Citations received | 2 |
| References cited | 24 |
From October 2010 to November 2011, the urban atmospheric CO 2 concentration in Guangzhou ranged from 550 to 460 ppm, with mean monthly concentration fluctuating between 530 and 470 ppm. A lower concentration was observed in summer and autumn, while a higher concentration occurred in spring and winter. The urban atmospheric CO 2 δ 13 C value varied between −9.00 and −13.10%, with mean monthly value fluctuating between −9.60 and −11.80%. There was no significant relationship between the CO 2 concentration and δ 13 C value, reflecting the influence from the fossil-fuel-derived CO 2 on the urban atmospheric CO 2 . The urban atmospheric CO 2 Δ 14 C value fluctuated dramatically from 29.1 ± 2.5% to −85.2 ± 3. 1%, with a mean annual value of −16.4 ± 3.0%. A similar seasonal variation of Δ 14 C value with the concentrations was observed: the higher Δ 14 C values mainly appeared in summer and autumn (July to September), with a mean value of about −5.2 ± 2.9%, while lower Δ 14 C values occurred in spring and winter (December to April), about −27.1 ± 3.2% average. Based on the atmospheric Δ 14 C values, the calculated fossil-fuel-derived CO 2 concentrations range between 1 and 58 ppm, with the mean annual concentration around 24 ppm. Similarly, a lower fossil-fuel-derived CO 2 concentration appeared in summer and autumn (July to September) with a mean value of ∼17 ppm, while the higher fossil-fuel-derived CO 2 concentration occurred in spring and winter (December to April) with an average value of ∼29 ppm. A comparison of the CO 2 concentrations before and after the Guangzhou Asian Games (in November 2010) and the Spring Festival of 2011 confirmed that human activities can greatly decrease the fossil-fuel-derived CO 2 emissions to the urban atmosphere in Guangzhou
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| Citations per year | 0.5 |
|---|---|
| Citation span | 2022 - 2022 (1) |
| Highly cited | No |