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Ventilation and accessibility are key health and safety issues for clean­up personnel in the semi-enclosed spaces under wharfs and other port structures. In some cases, the wharves are built with such short piles that it is difficult and dangerous for clean-up crews to get underneath the structures at all states of the tide. In other cases, the long access routes for working deep under some wharves make work impractical because of the danger of being trapped under the wharf by a rising tide. This is especially true for a commercially-active wharf, where the quickest escape routes may be blocked by vessels hundreds of metres long.

Once floating oil has been addressed, response operations can shift towards removing oil stranded on shorelines and facilities. Sometimes it may be possible to remove the bulk layer of oil by manually scraping or wiping with rags. This is often very easy where contaminated surfaces like concrete, steel and wood are smooth and accessible and it is sometimes possible to return these areas to their original condition quite quickly. The presence of' marine growths such as algal films can make the oil removal process easier. Sometimes stains are left, but aesthetic concerns are often minimal in industrial areas. With the ever-increasing availability of small, efficient hot and cold water pressure cleaners a good standard of cleaning can often be achieved relatively easily.

Porous surfaces, such as crumbling or rough cement, rusty steel or hard natural surfaces, can be more time consuming to clean, even with hot water high-pressure units and there is the added complication that aggressive cleaning techniques may cause structural damage. Common sense needs to be applied, perhaps using less aggressive cleaning (such as lower pressure ‘flushing’) and accepting lower standards of cleanliness.

Vocabulary

health – здоровье

safety – безопасность

accessability – доступность

issue – вопрос

cleanup – уборка, чистка

semi-enclosed – полузакрытый

space – пространство

pile – свая

underneath – под

structure – сооружение

state – состояние

tide – прилив

route – путь

impracticable – невыполнимый, неосущест-

вимый

rising – поднимающийся

escape – выход

once – как только

float – плавать

address – браться, приниматься за что-л.

shift – перемещаться, переключаться

remove – удалять, убирать

stranded – осевший

facilities – сооружения, средства оснаще-

ния

bulk – бóльшая часть

layer – слой

manually – вручную

scrape – соскребать, скоблить

wipe – вытирать

rag – тряпка

surface – поверхность

concrete – бетон

smooth – гладкий

area – площадь, территория

condition – состояние

presence – наличие

growth – культура (бактерий)

algal – водоросли

film – плёнка

stain – пятно

aesthetic – эстетический

concern – забота

cleaner – очиститель

relatively – относительно

porous – пористый

crumble – осыпаться, крошиться

rough – неровный, грубый

rusty – ржавый

time consuming – затратный по времени

complication – сложность

cause – вызывать

common sense – здравый смысл

pressure – давление

flushing – смывание, смывка

Дата добавления: 2015-11-14