. 2015 Jun 1;2015:237140. doi: 10.1155/2015/237140

Table 2.

TSP mass concentrations (8 hr TWA) in personal and area samples from workplace A.

Process	Sampling site	Sampling day	Filter weight (Before)	Filter weight (After)	Flow rate (L/min)	Sampling time (min)	Mass concentration (mg/m³)	8 hr TWA (mg/m³)
MWCNT synthesis	Personal-1	1st	0.04524	0.04535	2.001	308	0.17848	0.11453
		2nd	0.04469	0.04493	1.972	375	0.32454	0.25355
		3rd	0.03856	0.03867	1.972	370	0.15076	0.11621

SWCNT synthesis	Personal-2	1st	0.04503	0.04506	1.995	244	0.06163	0.03133

ARC Catalyst	Personal-3	1st	0.04496	0.04501	2.046	317	0.07709	0.05091
		2nd	0.0447	0.04482	1.985	336	0.17992	0.12594
		3rd	0.03905	0.0392	1.985	359	0.34831	0.25189^∗
	Personal-4	2nd	0.04468	0.04479	2.042	356	0.15132	0.11223
	Personal-4	3rd	0.03895	0.03899	2.042	163	0.12018	0.04081

CVD Catalyst	Area-1	1st	0.04482	0.04493	2.020	293	0.18585	0.11345
		2nd	0.03861	0.03865	2.001	370	0.05403	0.04165
		3rd	0.03873	0.03877	1.950	317	0.06471	0.04274
	Area-2	1st	0.04478	0.04492	7.027	284	0.07016	0.04151
		2nd	0.0449	0.04508	6.773	370	0.07183	0.05537
		3rd	0.03879	0.03886	6.773	87.2	0.11852	0.02153
	Area-9	2nd	0.03894	0.03903	2.010	438	0.10223	0.09328
	Area-9	3rd	0.03883	0.039	2.026	375	0.22376	0.17481

ARC Catalyst	Area-3	1st	0.04473	0.04484	1.953	172	0.32746	0.11734
		2nd	0.04493	0.04507	1.960	380	0.32109	0.24447^∗
		3rd	0.03852	0.03859	2.001	370	0.09455	0.07288
	Area-4	1st	0.04513	0.04524	6.833	292	0.05513	0.03354
		2nd	0.0447	0.04486	7.033	249	0.09137	0.04740
		3rd	0.03893	0.03898	7.010	367	0.01944	0.01486

In front of MWCNT equip.	Area-5	1st	0.04513	0.04519	2.007	298	0.10035	0.06230
		2nd	0.04454	0.04465	2.026	212	0.25610	0.11311
		3rd	0.03901	0.03903	1.960	364	0.02803	0.02126
	Area-6	1st	0.0444	0.04456	6.848	298	0.07841	0.04868
		2nd	0.0448	0.04497	7.088	318	0.07542	0.04997
		3rd	0.03868	0.03873	7.033	132	0.05386	0.01481

In front of SWCNT equip.	Area-7	1st	0.04468	0.04481	2.018	159	0.40516	0.13421
		2nd	0.03864	0.03866	1.950	363	0.02825	0.02137
		3rd	0.03867	0.0373	2.010	131	ND	ND
	Area-8	1st	0.04464	0.04484	7.328	265	0.10299	0.05686
	Area-8	2nd	0.04452	0.04475	7.010	365	0.08989	0.06835

ND: Not detected; ^∗changed during the sampling period to avoid overload.