Although it has been stated that comparisons between the FM and ATP methods may not be valid because they measure different properties of cleanliness (how well a surface is wiped clean in contrast to the quantity of organic material contaminating a surface), [ 26] both have been recommended to evaluate effectiveness of PDC [ 3].
The meltdown of one of the reactors at the Chornobyl power plant in Ukraine on 26 April 1986 spewed some 50 tons of radioactive material, contaminating an area inhabited by 5 million people.
The Environmental Protection Agency is scouring the country for fertilizer and animal feed made from imported raw materials contaminated with cadmium, a toxic metal.
Police temporarily cordoned off a large section of Mayapuri while scientists removed 11 samples of materials contaminated with Cobalt-60, a radioactive isotope used in food irradiation and radiotherapy, including cancer therapy.
The site takes on unfounded reports about infected syringes pasted to gas-pump handles (or pay phones and vending machines), flesh-eating bacteria on banana peels and a Hawaiian stock clerk who allegedly died after handling materials contaminated with rat urine.
You say a "dirty" bomb -- a bomb that uses conventional explosives to spew potentially lethal radioactive material -- could contaminate "a wide area" and while probably not causing many deaths, would necessitate cleanup costs and other effects like those after the Chernobyl nuclear accident.
The work is based on evaporative drying tests performed on one lime coating applied on five substrate materials contaminated with solutions of NaCl or Na2SO4.
The use of a simple box type cooker for solar disinfection has been previously reported for microbiological materials contaminated with other bacteria[5], but has not been investigated for Mycobacterium tuberculosis (MTB).
Furthermore, animals and humans can be infected by ingesting soil, water, or plant materials contaminated with T. gondii oocysts shed by infected cats [ 25].
Previous reports of cases associated with industrial sources or with materials contaminated by B. anthracis suggest that some susceptible persons, including children, were infected during relatively brief exposures (26 – 26 ).
