Environmental Sciences Europe

Table 1 The slopes, CIs, and statistical significances of the eBC mass concentration and PNC during 2009–2018, using two approaches: seasonal MK and GLS-ARB

From: Long-term trends of black carbon and particle number concentration in the lower free troposphere in Central Europe

	Seasonal MK				GLS-ARB
	Slope (%/year)	CI (%/year)		Significance	Trend of log (data)
PBL
ZSF
eBC	− 3.88%	− 10.15%	0.56%	s.s. decrease	s.s. decrease
N_[25–80]	− 3.81%	− 5.42%	− 1.96%	s.s. decrease	s.s. decrease
N_[80–510]	− 4.96%	− 11.86%	− 0.84%	s.s. decrease	s.s. decrease
JFJ
eBC	− 3.36%	− 8.71%	− 0.28%	s.s. decrease	s.s. decrease
FT
ZSF
eBC	− 6.47%	− 20.32%	8.86%	Not s.s.	s.s. decrease
N_[25–80]	− 8.73%	− 17.66%	− 0.25%	Not s.s.	s.s. decrease
N_[80–510]	− 7.23%	− 17.07%	4.62%	Not s.s.	s.s. decrease
JFJ
eBC	− 2.66%	− 9.81%	3.61%	Not s.s.	s.s. decrease

The bold number shows the statistically significant (s.s.) slope at the 95% significance level

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