Evaluation of Petroleum Contamination Effects on Soil Water Repellency Intensity in Bakhtiardasht of Isfahan
Message:
Abstract:
The presence of oil contaminations in soil may be poisonous for human and other living organisms and can also pollute underground water. Petroleum hydrocarbons are one of the most common organic pollutant groups in environment which cause concern because of their ability in environmental degradation. Thus, it is very important to reclaim such polluted areas. This study was performed in Bakhtiardasht area (Isfahan Province) to determine distribution and intensity of oil contamination caused by the disposal of oil refinery waste in soil and their influence on soil water repellency using geostatistical methods. One hundred samples were taken from 100 nodes of a network pattern with 100 meters spacing. Total petroleum hydrocarbons (TPH), soil water repellency, and some other factors of soil were measured as test variables. Based on the results, the variables followed the spherical semivariogram model and had the medium spatial structure. The TPH concentrations were higher than the international permissible limit (0.1 percent) in most parts of the soil. The variability and spatial distribution of soil water repellency were mostly related to TPH. The surfaces of soil particles were covered by TPH and this caused an increase in water repellency. Most of the soils were in the groups of relatively water repellent (5 to 60 s) to extremely water repellent (< 3600 s) because of different concentrations of oil pollutants in soil. This may lower infiltration rate and can cause a decrease in soil moisture content and, consequently, increase in runoff and limitation of soil water for plant growth.
Language:
Persian
Published:
Iranian Journal of Soil Research, Volume:29 Issue: 3, 2016
Pages:
359 to 369
magiran.com/p1481404  
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یک‌ساله به مبلغ 990,000ريال می‌توانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
  • حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران می‌شود.
  • پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانه‌های چاپی و دیجیتال را به کاربر نمی‌دهد.
دسترسی سراسری کاربران دانشگاه پیام نور!
اعضای هیئت علمی و دانشجویان دانشگاه پیام نور در سراسر کشور، در صورت ثبت نام با ایمیل دانشگاهی، تا پایان فروردین ماه 1403 به مقالات سایت دسترسی خواهند داشت!
In order to view content subscription is required

Personal subscription
Subscribe magiran.com for 50 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!