Ecological information (often non-mandatory) may include which topics?

• A. Exotoxicity, Persistence and Degradability, Bioaccumulative Potential, Mobility in soil
• B. UN number, Proper shipping name, Hazard classes
• C. Solubility, Relative density, Viscosity
• D. Auto-ignition temperature, Decomposition temperature, Vapor pressure

Answer: (A)

Ecological information in safety data sheets focuses on how a chemical behaves in the environment and what effects it can have there. The topics that fit this area are ecotoxicity (effects on aquatic and terrestrial life), persistence and degradability (how long the chemical lasts and how it breaks down), bioaccumulative potential (tendency to build up in organisms over time), and mobility in soil (likelihood of moving through soil and reaching water sources). Together, these topics describe environmental hazards and fate, which is the purpose of ecological information.

The other topics listed don’t fit ecological information as closely. UN numbers, proper shipping names, and hazard classes relate to transporting the chemical, not environmental impact. Solubility, relative density, and viscosity are general physical properties, not specifically about environmental fate or ecological effects. Auto-ignition temperature, decomposition temperature, and vapor pressure concern stability and flammability, not environmental ecology.