1. (a) A generalized air pollution episode is a generalized condition of air pollution as specified in the Texas Clean Air Act (TCAA), §3.14(a), that requires immediate action to protect human health or safety. An episode may be declared for one or more air contaminants and will apply to any geographical area affected by the generalized condition of air pollution.

2. (b) A Level 1 air pollution episode exists if the criteria specified in paragraphs (1) and (2) of this subsection are met.

   1. (1) The concentration of any of the air contaminants is equal to or greater than the levels specified for Level 1 in Table 1.
   2. (2) In the case of all air contaminants except ozone, meteorological conditions conducive to high levels of air contamination are predicted to continue for at least 12 hours. In the case of ozone, meteorological conditions conducive to high levels of ozone are likely to recur within the next 24 hours.
3. (c) A Level 2 air pollution episode exists if the executive director determines that emergency reduction of emissions must be initiated to prevent the presence in the atmosphere of any of the air contaminants in the concentrations specified for Level 2 in Table 1. These levels could cause significant harm to human health.

Source Note:The provisions of this §118.1 adopted to be effective January 1, 1976; amended to be effective August 25, 1987, 12 TexReg 2639; amended to be effective May 26, 1989, 14 TexReg 2365.