Crystalline silica is a common mineral in the earth's crust, and is found in many types of rock including sand, quartz, and granite. When you inhale crystalline silica, the lung tissue reacts by developing fibrous tissue around trapped silica particles. Silica is present in both work and non-work environments, and exposure to crystalline silica dust has long been known to cause a disease called silicosis.
Falls from heights and on the same level (a working surface) have consistently been in the top ten OSHA violations for several years, and are among the leading causes of serious work-related injuries and deaths. On January 28th, 2017, OSHA issued a final rule on Walking-Working Surfaces and Personal Fall Protection Systems to better protect workers in general industry from these hazards by updating and clarifying standards and adding training and inspection requirements.
Nothing is more important than fall protection safety—OSHA thinks so too. Dangerous circumstances involving safety at heights are all too common. Fall protection (1926.501) was the leading cause in willful and serious violations in the fiscal year of 2015 according to the NSC.
How has the world been able to safely ensure the manufacturing, distribution and practice of extremely hazardous goods? The Globally Harmonized System of Classification and Labeling of Chemicals (GHS) came to fruition in 1992 at the United Nations Rio Conference. At this time there was a large increase in international chemical trade. Most of the countries involved in such trades used different chemical and labeling systems that posed many potentially dangerous situations which caused the United Nations to decide that the populace needed to be on the same page. And so GHS was born.