Environmental Sciences Europe

Table 4 Spearman’s rank correlation coefficient (r) between concentrations of NBFRs in ESD

From: Novel brominated flame retardants in house dust from Shanghai, China: levels, temporal variation, and human exposure

	PBT	PBEB	HBB	EHTBB	BTBPE	BEHTEBP	DBDPE
PBT		0.879**	0.445	0.635**	0.086	− 0.083	0.556*
PBEB	0.879**		0.249	0.573*	0.205	− 0.090	0.564*
HBB	0.445	0.249		0.676**	0.345	− 0.116	0.161
EHTBB	0.635**	0.573*	0.676**		0.154	0.014	0.469*
BTBPE	0.086	0.205	0.345	0.154		− 0.091	0.014
BEHTEBP	− 0.083	− 0.090	− 0.116	0.014	− 0.091		− 0.270
DBDPE	0.556*	0.564*	0.161	0.469*	0.014	− 0.270

* P < 0.05; ** P < 0.01

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