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Interesting how the air pollution generated by the local fire serves as “barometer” for light pollution. When Dan, Neil and I were up at the observatory on Saturday, 4 July, we had a reasonable line of sight on the fire northwest of Sechelt at Carlson Point. One thing noticed that night was the orange glow of firelight reflected off smoke over the fire.
So on Monday night I stepped outside at about 11pm and the smoke was like a fog permeating the neighbourhood here on upper-Field Rd. Out of curiosity I wandered a short distance up Field Rd to see if the orange haze that resembled what was observed the night before, from the observatory site looking in the vicinity of the wildfire, was produced by the fire getting closer. It immediately became apparent that the orange glow was generated primarily by sodium lighting in the Field Rd. industrial area, and by lighting at the regional district’s complex. The scattering of unshielded, or poorly shielded lighting was evident according to the “smoke detector”. With the smoke making the illumination directed upward – where it’s not needed, much more plain to see.