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Article
The Frequency of Some Deramatoses Related to Increase Solar Radiation Exposure in Sulaimania City

Authors: Mohammad Y. Saeed --- Saeed, Ali M. Dhahir --- Neaz A. Salih
Journal: Iraqi Academic Scientific Journal المجلة العراقية للاختصاصات الطبية ISSN: 16088360 Year: 2011 Volume: 10 Issue: 1 Pages: 110-115
Publisher: The Iraqi Borad for Medical Specialization المجلس العراقي للاختصاصات الطبية

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Abstract

ABSTRACT:BACKGROUND:Various skin disorders are related to increase solar radiation exposure. These diseases mainly increase in spring and summer months among general population due to an increase to sun light exposure and an increase intensity of ultravaiolet radiation (UVR).OBJECTIVE:This study was done to evaluate different skin diseases related to study the frequency of the skin diseases related to increase exposure to UV light in Sulaimania city.METHODS:This is a selective prospective study; the data collected during the period of the January 2006 to September 2007 in Dermatology Department in Consulting Clinic in Sulaimania city, 391 cases were collected in both sexes whose ages ranged between 5 and 73 years with a mean age of 39 years.Full history and thorough physical examination was done for all patients.RESULTS:Three hundred ninety one patients were included in this study ; they were 190 (48.6%) males and 201 (51.4%) females, there ages ranged between 5-73 years with a mean age of 39 years. Sunburn 116 (29.7%) patients was the commonest condition seen, acne like eruption 84 (21.4%) patients, drug photosensitivity: 74 (18.9%) patients, Polymorphous light eruption: 32 (8.1%) patients, Chronic actinic dermatitis: 24 (6.1%) patients, Lichenoid dermatitis: 21 (5.3%) patients, Actinic prurigo like polymorphic light eruption 18 (4.6%) patients, .Lichen planus actinicus: 15 (3.9%) patients, Solar urticaria: 5 (1.2%) patients, Porokeratoses: 2 (0.6%) patients, The number of the cases variable during the months from no cases in January and February to the highest numbers during the summer months with a top (149) patients, in August.CONCLUSION:To best of our knowledge this is first study done about UVR exposure in Sulaimania city. There are various dermatoses related to increase UVR exposure, as the UV index increases, the number of cases increases. The highest number of cases occurs in summer (especially in July and August), because in summer the UV index reaches its higher levels and the outdoor activities increase with inadequate protective measures in Sulaimania without regular used of sunscreen.We recommend strict use of sunscreen for males and females especially summer times and avoid going out in specific times of the day especially in summer.We recommend future studies about tumors, photoaging, DNA repair-defective disorders and dermatoses aggravated by solar exposure like porphyria, SLE, pellagra, rosacea.


Article
Computation of Solar Radiation on Horizontal Surface Over Some Iraqi Cities

Author: Firas Aziz Ali
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2011 Volume: 29 Issue: 10 Pages: 2026-2043
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

In this study a simple correlation is developed to predict monthly average daily global solar radiation on a horizontal surfaces for different Iraqi locations. For fiveyears interval (1981-1985), monthly average daily global solar radiation and sunshine duration data were measured on horizontal surfaces at some Iraqi cities (Kirkuk,Baghdad, Nasiriyah). A mathematical linear correlation represented by (Angstrom correlation) was applied to estimate the global radiation from hours of sunshine duration for these cities at the specified day of each month as shown in tables (2a, b, c). The model was compared with three different mathematical correlations models (quadratic, logarithmic, and exponential) to get the best fit among them. The obtained models have a high value of regression coefficient and give best fit through the measured values. In this study, the monthly average daily diffuse and beam radiations on horizontal surface were estimated from the measured global radiation. The overallresults show that, Baghdad city received higher radiation on the horizontal surface than Kirkuk and Nasiriyah.

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