Occurrence of Toxic Cyanobacterial Blooms in Rio de la Plata Estuary, Argentina: Field Study and Data Analysis

Table 4

Parameters, goodness of fit and estimated probability of microcystin concentration above specified values for each distribution function versus observed frequencies at each sampling site.

Sampling site	Distribution functions	Dist. parameters		Goodness of fit	Estimated counts above Nc from 2004–2006 data versus
					observed data 2007
		α	β	𝜒^2	Nc≤ 4 μg L^−1		Nc≤ 5 μg L^−1
					Estimated	Observed	Estimated	Observed
Station 1	Log-normal	7.7	0.3	15.5	3-4	0	2-3	0
	Extreme value	1910	490	15.5	4-5		3-4
Station 2	Log-normal	7.7	0.3	15.5	2-3	2	2-3	2
	Extreme value	1910	480	15.5	3-4		1-2
Station 3	Log-normal	7.6	0.3	15.5	3-4	0	2-3	0
	Extreme value	1840	330	15.5	4-5		3-4