. Author manuscript; available in PMC: 2017 May 17.

Published in final edited form as: Environ Sci Technol. 2016 Apr 26;50(10):5111–5118. doi: 10.1021/acs.est.5b06001

Table 1.

Spatio-temporal model specifications for O₃ and PM_2.5

	No. of routine monitoring Sites	No. of Fixed Sites	No. of Home Sites	No. of Time Trends	¹ No. of PLS Scores	² Spatial Smoothing
	No. of routine monitoring Sites	No. of Fixed Sites	No. of Home Sites	No. of Time Trends	¹ No. of PLS Scores	Long Term (β₀)	Time Trend (β_i)
O₃	37	2	117	2	(3,1,1)	Yes	No
PM_2.5	22	7	113	2	(2,1,2)	Yes	No

Number of PLS scores for each trend (long-term mean, 1^st time trend, 2^nd time trend);

Yes, exponential covariance structure. No, independent covariance structure.