"We now have so many that they constitute a hazard for pedestrians trying to pass by," she said, adding, "They're particularly unsightly in a landmark district".
One challenge in demonstrating the gravity of the problem to the public is the lack of national standards about what level of contamination constitutes a hazard.
In their defense, the companies have said that with so many recalls, it is hard to ascertain what constitutes a hazard requiring an immediate fix.
Bacteriological contamination of lake waters resulting in levels that constitute a hazard to health is another common result of disregard for the environment.
That law is supported by tenants' groups because it provides what Mr. Chachere called "a happy medium" by allowing lead paint to remain in dwellings where children reside while requiring the owners to ensure that it does not constitute a hazard.
Clear-air turbulence (CAT), erratic air currents that occur in cloudless air between altitudes of 6,000 and 15,000 metres (20,000 and 49,000 feet) and constitute a hazard to aircraft.
At the Marco Polo Bridge it is 50 feet (15 metres) above the level of the city, thus constituting a hazard when the river is in flood but also facilitating canalization and irrigation.
And, the report emphasizes, "[a]s the content expert in matters related to the laboratory, the PI [principal investigator] is most able to provide guidance concerning what constitutes a hazard in the performance of an experiment or research plan".
This paper aimed to clarify whether maternal inhalation of engineered nanoparticles (NP) may constitute a hazard to pregnancy and fetal development, primarily based on experimental animal studies of NP and air pollution particles.
This 'press button' performance in the actual hazard detection task was not considered in this study because previous analysis indicated large variability in 'press button' scores and the influence of subject specific definition of what constitutes a hazard [18].
