Concentrations above 5ppm in air can cause serious problems. You might want to look at this paper, if only to see that, commercially, HCl solutions have another name which can be misleading, Muriatic Acid. What happens if muriatic acid fumes are inhaled?
Answer: A palapa is a thatched-roof, open-sided structure (see palapa photo). The material to cover the roof of a palapa typically consists of dried and woven palm-tree leaves. A palapa is sometimes referred to as a grass or tiki hut.
plaâ¢teau. 1. a land area having a relatively level surface considerably raised above adjoining land on at least one side. 2. a period or state of little or no growth or decline, esp. one in which increase or progress ceases: to reach a plateau in one's career.3. to reach a state or level of little or no growth or decline; stabilize.platel flat object, diminutive of plat plate ]. (plÄ-tÅâ²). relatively stable level, period, or state: Mortgage rates declined, then reached a plateau. intr.v. plaÂ·teaued, plaÂ·teauÂ·ing, plaÂ·teaus. To reach a stable level; level off: The tension seemed to grow by degrees, then it plateaued (Tom Clancy).