Table 3. PM10 concentration at three different levels of light intensity for 90 minutes

Time (Min.)	Dieffenbachia amoena			Spathiphyllum spp.
	Light intensity (µmol․m−2․s−1)			Light intensity (µmol․m−2․s−1)			Significance
	0	30	60	0	30	60
0	100.0az	100.0a	100.0a	100.0a	100.0a	100.0a	ns
10	70.7a	62.4ab	58.6ab	642a	56.0b	56.1b	ns
20	50.7a	41.7bc	36.3bc	42.7ab	37.5bc	33.4c	**
30	36.6a	27.5bc	24.9bc	28.7b	25.5bc	21.6c	**
40	27.8a	18.9b	17.3bc	19.9b	18.0bc	14.2c	***
50	21.0a	13.3b	12.6b	14.2b	12.8b	9.3c	***
60	16.0a	9.1b	8.9b	10.1b	9.2b	6.1c	***
70	12.3a	6.2bc	6.4bc	7.0b	6.6b	4.0c	***
80	9.4a	4.2bc	4.3bc	4.9b	4.6b	2.3c	***
90	7.3a	2.8bc	2.8bc	3.3b	3.3b	1.4c	***

Means separation within rows by Duncan's multiple range test, p<0.05.
Nonsignificant or significant at p=0.05, 0.01, or 0.001, respectively.