Click Here To Download Data as XLSX                                                 Publish Date, 25/06/2025
Annual Percent of Chlorophyll-a Deviation in Palestine (%)
Year	Percent
2005	6.1
2006	15.6
2007	12.5
2008	35.0
2009	10.0
2010	3.3
2011	4.2
2012	1.7
2013	11.1
2014	10.5
2015	3.5
2016	1.8
2017	1.8
2018	5.3
2019	14.0
2020	6.7
2021	24.1
2022	1.0
Source: Palestinian Central Bureau of Statistics (PCBS), 2025. Emissions Database, based on estimations from the State of the Environment Report in the State of Palestine, 2023, issued by the Palestinian Environment Quality Authority, 2024. and United Nations Environment Programme (UNEP)
Definition: Chlorophyll-a deviation is the numerical difference (absolute or percentage) between the observed chlorophyll-a concentration and the historical mean, used to detect anomalies in phytoplankton biomass or water quality conditions.