Monitoring reports (in Latvian)

Year	Month	Desription	File
2010	May	56 stations
2009	November	27 stations
	August	41 stations
	May	45 stations
	March	36 stations
2008	November-December	28 stations
	September	47 stations
	August	17 stations
	July	14 stations
	July	8 stations
	April-May	55 stations
	April	6 stations
	March	42 stations
	January	6 stations
2007	November	23 stations
	September	6 stations
	August	30 stations
	July	6 stations
	May	33 stations
	April	6 stations
	January	27 stations
2006	September-October	6 stations
	August-September	26 stations
	July	6 stations
	May-June	33 stations
	April-May	6 stations
	April	5 stations