Showing 721 - 740 results of 2,863 for search '"hazing"', query time: 0.14s Refine Results
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    The impact of FDI on haze pollution: “Pollution paradise” or “pollution halo?”--Spatial analysis of PM2.5 concentration raster data in 283 cities by Yanbo Liu, Yanbo Liu, Mingshun Guo

    Published 2023-03-01
    “…This paper constructs a spatial econometric model based on the environmental Kuznets curve to examine the effect of foreign direct investment (FDI) on urban haze pollution in Chinese cities. The evidence from the raster data of PM2.5 concentration in MODIS and MISR shows that there is a significant spatial correlation between haze pollution and FDI in Chinese cities, which is expressed as a spatial spillover effect; FDI in Chinese mainland cities reduces haze pollution, which confirms the “pollution halo hypothesis”; using instrumental variable estimation, the above conclusions are still robust; The total effect of FDI on haze pollution is negative, and the total effect can be decomposed into scale effect, technology effect and structural effect; FDI increases urban haze pollution through scale effects and structural effect, but decreases urban haze pollution through technology effects; the environmental Kuznets curve exists in urban haze pollution in China, i.e., there is an inverted “U” relationship between economic development and haze pollution. …”
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    Particle phase state and aerosol liquid water greatly impact secondary aerosol formation: insights into phase transition and its role in haze events by X. Meng, Z. Wu, Z. Wu, J. Chen, Y. Qiu, T. Zong, M. Song, J. Lee, M. Hu, M. Hu

    Published 2024-02-01
    “…These results highlight phase transition as a key factor initiating the positive feedback loops between ALW and secondary aerosol formation during haze episodes over the North China Plain. Accurate predictions of secondary aerosol formation necessitate explicit consideration of the particle phase state in chemical transport models.…”
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    Amplified role of potential HONO sources in O<sub>3</sub> formation in North China Plain during autumn haze aggravating processes by J. Zhang, C. Lian, C. Lian, W. Wang, W. Wang, M. Ge, M. Ge, M. Ge, Y. Guo, Y. Guo, H. Ran, H. Ran, Y. Zhang, F. Zheng, X. Fan, C. Yan, K. R. Daellenbach, Y. Liu, M. Kulmala, M. Kulmala, J. An, J. An, J. An

    Published 2022-03-01
    “…<p>Co-occurrences of high concentrations of PM<span class="inline-formula"><sub>2.5</sub></span> and ozone (O<span class="inline-formula"><sub>3</sub></span>) have been frequently observed in haze-aggravating processes in the North China Plain (NCP) over the past few years. …”
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    Ground-based characterization of aerosol spectral optical properties of haze and Asian dust episodes under Asian continental outflow during winter 2014 by J. Jung, J. Yu, Y. Lyu, M. Lee, T. Hwang, S. Lee

    Published 2017-04-01
    “…Long-range transported (LRT) haze can affect the regional radiation budget and the air quality in areas downwind of the Asian continental outflow. …”
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  11. 731

    PM2.5 diminution and haze events over Delhi during the COVID-19 lockdown period: an interplay between the baseline pollution and meteorology by Surendra K. Dhaka, Chetna, Vinay Kumar, Vivek Panwar, A. P. Dimri, Narendra Singh, Prabir K. Patra, Yutaka Matsumi, Masayuki Takigawa, Tomoki Nakayama, Kazuyo Yamaji, Mizuo Kajino, Prakhar Misra, Sachiko Hayashida

    Published 2020-08-01
    “…Notably, events of enhanced PM2.5 levels (300–400 µg m−3) were observed during night and early morning hours in the first week of April after air temperatures fell close to the dew-point (~ 15–17 °C). A haze formation mechanism is suggested through uplifting of fine particles, which is reinforced by condensation of moisture following the sunrise. …”
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  12. 732

    Increasing persistent haze in Beijing: potential impacts of weakening East Asian winter monsoons associated with northwestern Pacific sea surface temperature trends by L. Pei, L. Pei, Z. Yan, Z. Yan, Z. Sun, S. Miao, Y. Yao

    Published 2018-03-01
    “…Over the past decades, Beijing, the capital city of China, has encountered increasingly frequent persistent haze events (PHE). While the increased pollutant emissions are considered as the most important reason, changes in regional atmospheric circulations associated with large-scale climate warming also play a role. …”
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  13. 733

    Aerosol Vertical Structure and Optical Properties during Two Dust and Haze Episodes in a Typical Valley Basin City, Lanzhou of Northwest China by Junyang Ma, Jianrong Bi, Bowen Li, Di Zhu, Xiting Wang, Zhaozhao Meng, Jinsen Shi

    Published 2024-03-01
    “…The profile of ozone concentration exhibited a prominent two-layer structure (0.60–1.40 km and 0.10–0.30 km), and both concentrations at two heights always remained at high levels (60~72 μg/m<sup>3</sup>) during the entire haze event. Conversely, surface ozone concentration showed a significant decrease during severe haze period, with the peak value of 20~30 μg/m<sup>3</sup>, which was much smaller than that before haze pollution (~80 μg/m<sup>3</sup> on 30 December). …”
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    VROHI: Visibility Recovery for Outdoor Hazy Image in Scattering Media by Mingye Ju, Can Ding, Y. Jay Guo

    Published 2020-01-01
    Subjects: “…Additive haze model…”
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    3D-Printed Polylactic Acid/Lignin Films with Great Mechanical Properties and Tunable Functionalities towards Superior UV-Shielding, Haze, and Antioxidant Properties by Haichuan Ye, Yuan He, Haichao Li, Tingting You, Feng Xu

    Published 2023-06-01
    “…Additionally, 3D-printed films with 0.5–5% lignin exhibited excellent ultraviolet (UV)-blocking capability of 87.4–99.9% for UVB and 65.6–99.8% for UVA, as well as remarkable antioxidant properties, ranging from 24.0% to 79.0%, and high levels of haze, ranging from 63.5% to 92.5%. Moreover, the prepared PLA/lignin (P/L) films based on 3D printing achieved the customization of film production and have potential applications in the fields of packaging, electronic products, medical care, and so forth. …”
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