2024-03-28T20:55:32Z
https://jes.journals.ekb.eg/?_action=export&rf=summon&issue=23253
Journal of Environmental Science
1110-0826
1110-0826
2020
49
2
MONITORING NOISE LEVELS ALONG THE GREATER CAIRO URBAN REGION RING ROAD IN EGYPT
Ashraf
Sakr
Farida
El-Dars
Mahmoud
Hewehey
In this study, the noise levels were monitored at Cornish EL Maadi (A), Gezirat El Dahab (B) and Al-Marioteya (C). The data revealed that the noise levels at Corniche El Maadi Street (A) and Al-Marioteya (C) (all day) as well as at Gezirat El Dahab (B) (evening) exceeded the set noise regulations in Egypt. Overall, it was the buses, private cars + taxis, mini vans and mini truck that made the main bulk of traffic passing through the ring road on weekdays. However, the study revealed that the main category of vehicles contributing towards the recorded noise levels was the miscellaneous type. This means of transportation were slow and proceeded along the right lane of the road and thus had a more measurable impact upon the recorded noise levels at the 3 monitored locations. However, the contribution from vans and mini-trucks towards the noise levels recorded was significant at Gezirat El Dahab and Al-Marioteya during Monday and Friday, respectively. Nonetheless, such contribution was not witnessed for Corniche El Maadi Street, where the miscellaneous category was a predominant noise contributing factor during both Monday and Friday.
Noise Pollution
urban transportation
traffic
Cairo Ring Road
2020
02
01
1
25
https://jes.journals.ekb.eg/article_158105_ca82eb4ec909d99ff529d87dc6a9e605.pdf
Journal of Environmental Science
1110-0826
1110-0826
2020
49
2
THE EFFECT OF SOME PLANT OILS ON LIVER EFFICIENCY AFTER EXPOSURE TO CEMENT IN RATS
Marwa
Hanafy
Hanaa
Elsayed
Maha
Mohamed
This study aimed at investigating possible protective effects of some plant oils on cement induced liver toxicity in rats. Methods: Forty Sprague Dawley rats divided into five groups (8 rats/group; four males and four females). Animals fed for 4 weeks the following diets: (I) basal/standard diet, negative control; (II) basal diet contains cement (1.5g/Kg body weight), positive control; (III, IV, and V) basal diet contains 10% (coconut oil or flaxseed oil or olive oil) plus the same dose of cement, as treatment groups. Results: Cement exposure resulted in a significant elevation in liver enzymes (Alanine transaminase (ALT), Aspartate transaminase (AST), lactate dehydrogenase (LDH), and along with elevating the level of hepatic tissue malondialdehyde (MDA). Plant oils reinstated most of the altered measured parameters. Conclusion: Supplementation of diet with coconut oil, flaxseed oil, and olive oil was effective in modulating some aspects of cement induced liver toxicity.
cement
Liver Efficiency
olive oil
Flaxseed oil
coconut oils
Rats
2020
02
01
27
47
https://jes.journals.ekb.eg/article_158106_2dd021cd7ffe1ad7faf0016aaf4da41a.pdf