Risk assessment of ice-melter reagents for urban plants

The paper assessed the phytotoxicity of the most frequently used ice-melter reagents in Moscow (sand and salt mixture, anti-freeze reagent based on a composition of calcium and sodium chloride, technical salt), snow with varying degrees of contamination of the remnants of ice-melter reagents, as well as soil after the snow cover melting. The toxicity assessment was carried out in the samples taken on the lawns along the roads in nine administrative districts of the city in places with the same anthropogenic load. The test object is oat seeds (Avena sativa), as a sensitive biotest showing the most stable and reproducible data compared to seeds from other crops. Salt solutions of reagents with dilution rates of 1, 2, 4, 6, 8 and 10, melted snow and soil extracts were used for biotesting. The phytotoxic effect was determined by comparing the average root length of control and prototype seeds. It was found that all studied ice-melter reagents have a pronounced toxic effect on oat plants even at tenfold dilution. The phytotoxic effect of snow and soil polluted with ice-melter substances, which in turn inherits the chemical composition of snow cover after its melting, was shown. © The Authors, published by EDP Sciences, 2020.

Авторы
Сборник материалов конференции
Издательство
EDP Sciences
Язык
Английский
Статус
Опубликовано
Номер
01009
Том
169
Год
2020
Организации
  • 1 Peoples' Friendship University of Russia (RUDN University), Faculty of Ecology, 6 MiklukhoMaklaya St, Moscow, 117198, Russian Federation
Ключевые слова
Environmental management; Melting; Planning; Reagents; Risk assessment; Safety engineering; Snow; Sodium chloride; Soil pollution; Soils; Sustainable development; Chemical compositions; Dilution rate; Phytotoxic effects; Salt mixtures; Salt solution; Soil extracts; Toxic effect; Toxicity assessment; Ice
Дата создания
02.11.2020
Дата изменения
02.11.2020
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/64717/
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