Výsledky vyhledávání - "F. M. Almehmadi"

Akademický článek

New particle formation, growth and apparent shrinkage at a rural background site in western Saudi Arabia

Autor: S. Hakala, M. A. Alghamdi, P. Paasonen, V. Vakkari, M. I. Khoder, K. Neitola, L. Dada, A. S. Abdelmaksoud, H. Al-Jeelani, I. I. Shabbaj, F. M. Almehmadi, A.-M. Sundström, H. Lihavainen, V.-M. Kerminen, J. Kontkanen, M. Kulmala, T. Hussein, A.-P. Hyvärinen

Publikováno v: Atmospheric Chemistry and Physics, Vol 19, Pp 10537-10555 (2019)

Atmospheric aerosols have significant effects on human health and the climate. A large fraction of these aerosols originates from secondary new particle formation (NPF), where atmospheric vapors form small particles that subsequently grow into larger

Externí odkaz: https://doaj.org/article/cd68fab8fabe4323bdde0fc78a560d89

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Particulate Monitoring and Evaluation of the Low-cost Sensors Performance at the Middle East

Autor: Georgiy L. Stenchikov, Mamdouh I. Khoder, Yasser Alshehri, Amer Bamuneef, Mansour A. Alghamdi, F. M. Almehmadi, Rayan Moathen

Key Words:Air Quality; Air Pollution Monitoring; Low-Cost Sensors; Reference Methods, Microsensors, Experimental Campaign Abstract:Air quality in the Middle East (ME) is strongly affected by desert dust besides anthropogenic pollutants. The health ha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4cc3f26e82195e72d1cfc0ea415709bb
https://doi.org/10.5194/egusphere-egu2020-2972

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Aerosol optical properties at rural background area in Western Saudi Arabia

Autor: Tareq Hussein, A. S. Abdelmaksoud, Mansour A. Alghamdi, Antti-Pekka Hyvärinen, Ibrahim I. Shabbaj, Kimmo Neitola, Mamdouh I. Khoder, F. M. Almehmadi, H. Al-Jeelani, H. Lihavainen

Publikováno v: Atmospheric Research. 197:370-378

To derive the comprehensive aerosol in situ characteristics at a rural background area in Saudi Arabia, an aerosol measurements station was established to Hada Al Sham, 60 km east from the Red Sea and the city of Jeddah. The present sturdy describes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff67c6c38c12f115fe69c82a868f9a6f
https://doi.org/10.1016/j.atmosres.2017.07.019

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Aerosols physical properties at Hada Al Sham, western Saudi Arabia

Autor: Tareq Hussein, Kimmo Neitola, Mansour Almazroui, Antti-Pekka Hyvärinen, Ibrahim I. Shabbaj, Kaarle Hämeri, H. Al-Jeelani, Jani Hakala, F. M. Al Zawad, F. M. Almehmadi, Tuukka Petäjä, Heikki Lihavainen, A. S. Abdelmaksoud, Mamdouh I. Khoder, V. Aaltonen, Mansour A. Alghamdi

Publikováno v: Lihavainen, H, Alghamdi, M A, Hyvärinen, A P, Hussein, T, Aaltonen, V, Abdelmaksoud, A S, Al-Jeelani, H, Almazroui, M, Almehmadi, F M, Al Zawad, F M, Hakala, J, Khoder, M, Neitola, K, Petäjä, T, Shabbaj, I I & Hämeri, K 2016, ' Aerosols physical properties at Hada Al Sham, western Saudi Arabia ', Atmospheric Environment, vol. 135, pp. 109-117 . https://doi.org/10.1016/j.atmosenv.2016.04.001

This is the first time to clearly derive the comprehensive physical properties of aerosols at a rural background area in Saudi Arabia. Aerosol measurements station was established at a rural background area in the Western Saudi Arabia to study the ae

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00aa74c444c4247f47b39d27401a14a7
https://doi.org/10.1016/j.atmosenv.2016.04.001

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Risk Assessment and Implications of Schoolchildren Exposure to Classroom Heavy Metals Particles in Jeddah, Saudi Arabia

Autor: Salwa K. Hassan, Mansour A. Alghamdi, F. M. Almehmadi, Mamdouh I. Khoder, Noura A. Alzahrani

Publikováno v: International Journal of Environmental Research and Public Health
Volume 16
Issue 24

Classrooms Air Conditioner Filter (CACF) particles represent all of the exposed particles that have migrated to the interior environment. This study was conducted to assess the heavy metals contamination in CACF particles from Jeddah primary schools

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afa6ff4c9a9b43c4b32469073c719900
https://doi.org/10.3390/ijerph16245017

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Temporal variations of O3 and NOx in the urban background atmosphere of the coastal city Jeddah, Saudi Arabia

Autor: Mamdouh I. Khoder, Mansour A. Alghamdi, Kaarle Hämeri, A. S. Abdelmaksoud, Ibrahim I. Shabbaj, H. Al-Jeelani, Heikki Lihavainen, Markku Kulmala, M. H. Goknil, Roy M. Harrison, Tareq Hussein, Antti-Pekka Hyvärinen, F. M. Almehmadi

Publikováno v: Atmospheric Environment. 94:205-214

Ozone is a pollutant of major concern because of its well recognized effects upon human health and crop yields. This study analyses in depth a new dataset for ozone from Jeddah, a coastal city in Saudi Arabia within the Middle Eastern region, for whi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5ec41b223606e509652a36478ffce348
https://doi.org/10.1016/j.atmosenv.2014.03.029

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Seasonal and diurnal variations of BTEX and their potential for ozone formation in the urban background atmosphere of the coastal city Jeddah, Saudi Arabia

Autor: Kaarle Hämeri, Mansour A. Alghamdi, H. Al-Jeelani, M. H. Goknil, Ibrahim I. Shabbaj, A. S. Abdelmaksoud, Antti-Pekka Hyvärinen, F. M. Almehmadi, Mamdouh I. Khoder, Heikki Lihavainen, Tareq Hussein, Roy M. Harrison

Publikováno v: Air Quality, Atmosphere & Health. 7:467-480

Past measurements of volatile organic compound (VOC) concentrations from Middle Eastern countries are very few, and this study assesses the concentrations and processes affecting benzene, toluene, ethylbenzene and xylenes (BTEX) in the atmosphere of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b0e1358d3feeca403d375590c80d9ef5
https://doi.org/10.1007/s11869-014-0263-x

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Particulate Matter and Number Concentrations of Particles Larger than 0.25 µm in the Urban Atmosphere of Jeddah, Saudi Arabia

Autor: F. M. Almehmadi, H. Al-Jeelani, Mansour A. Alghamdi, Mamdouh I. Khoder, Heikki Lihavainen, Mohammad K. Goknil, Kaarle Hämeri, A. S. Abdelmaksoud, Ibrahim I. Shabbaj, Tareq Hussein, Antti Hyvärinen

Publikováno v: Aerosol and Air Quality Research. 14:1383-1391

We investigated the temporal variation of PM and aerosol particle number concentration (TC, D_p 0.25-32 µm) during year 2012 in Jeddah city. We focused on the daily patterns, wind sector analysis, and the effect of ambient conditions. The daily medi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::821afa78e890ad4b9446966a6df1bf12
https://doi.org/10.4209/aaqr.2014.02.0027

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A Predictive Model for Steady State Ozone Concentration at an Urban-Coastal Site

Autor: H. Al-Jeelani, A. S. Abdelmaksoud, Heikki Lihavainen, Ibrahim I. Shabbaj, Mamdouh I. Khoder, Sharif Arar, Mansour A. Alghamdi, Tareq Hussein, F. M. Almehmadi, Martha A. Zaidan, Afnan Al-Hunaiti, Antti Hyvärinen, Lubna Dada

Publikováno v: International Journal of Environmental Research and Public Health, Vol 16, Iss 2, p 258 (2019)
International Journal of Environmental Research and Public Health
Volume 16
Issue 2

Ground level ozone (O3) plays an important role in controlling the oxidation budget in the boundary layer and thus affects the environment and causes severe health disorders. Ozone gas, being one of the well-known greenhouse gases, although present i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0fac8eac18b3a5fab60a73ec1687ce4
https://doi.org/10.3390/ijerph16020258

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Assessment of seasonal variation for air pollutant accumulation by Zizyphus tree under washing treatment

Autor: F. M. Almehmadi, Mohamed A. Shaheen, Abdulmohsin R. Al-Shareef, Fathy S. El-Nakhlawy, Muhammad Ihsan

Publikováno v: Environmental Monitoring and Assessment. 188

A field study was carried out near Jeddah Industrial Zone to estimate the leaf impairment, physiological disorders, and air pollutant accumulation potential of Ziziphus tree. The experiment was triplicated in RCBD design with factorial arrangement ha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53e487e75f40425d80551e89c32411e1
https://doi.org/10.1007/s10661-016-5354-8

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