Harare Correspondent
HARARE \u2013 Recent heavy rains have significantly improved water clarity in Lake Chivero, marking a turnaround from a toxic algal bloom crisis that plagued the reservoir late last year, Zimbabwe Parks and Wildlife Management Authority (ZimParks) officials confirmed.<\/p>\n\n\n\n
ZimParks senior terrestrial ecologist Diana Marewangepo highlighted the stark contrast during a recent tour of Ramsar-designated wetland sites.<\/p>\n\n\n\n
\u201cRight now, as you can see, the lake is as clean as it can be. But in December, it was dominated by blue-green algae, or cyanobacteria,\u201d she said.<\/p>\n\n\n\n
\u201cWhen concentrations spike, these algae form thick layers. The danger is that some cyanobacteria produce toxins harmful to humans, wildlife, and aquatic ecosystems.\u201d<\/p>\n\n\n\n
The algal bloom, linked to nutrient pollution from agricultural runoff and untreated sewage, had raised fears about water quality in the lake, a critical source of Harare\u2019s drinking water.<\/p>\n\n\n\n
However, seasonal rains diluted the algae, restoring clarity temporarily.<\/p>\n\n\n\n
Responding to concerns, City of Harare spokesperson Stanley Gama emphasized that water from Lake Chivero undergoes rigorous treatment.<\/p>\n\n\n\n
\u201cWe treat the water thoroughly at our plant until it is 99.99% clean. Regardless of the lake\u2019s condition, we use chemicals to ensure it meets both the Standards Association of Zimbabwe (SAZ) and World Health Organization (WHO) standards,\u201d he said.<\/p>\n\n\n\n
\u201cThe rains help neutralize pollutants, but our processes guarantee safety year-round.\u201d<\/p>\n\n\n\n
Gama acknowledged the City\u2019s reliance on Lake Chivero amid Harare\u2019s persistent water shortages, stating,<\/p>\n\n\n\n
\u201cWe have nowhere else to source water. This lake is vital, and we monitor it continuously.\u201d<\/p>\n\n\n\n
While the rains provided respite, Marewangepo warned that algal blooms could recur without sustainable measures to curb pollution.<\/p>\n\n\n\n
\u201cThis improvement is seasonal. To protect Lake Chivero, we need to address upstream contamination from fertilizers, industrial waste, and sewage,\u201d she urged.<\/p>\n\n\n\n
Environmental groups have long criticized inadequate wastewater treatment infrastructure and lax enforcement of pollution laws, which exacerbate pressure on the lake. Harare\u2019s water treatment plants, strained by aging equipment and chemical shortages, have struggled to maintain consistent supply, fueling public anxiety.<\/p>\n\n\n\n
As authorities celebrate the short-term recovery, experts stress that lasting solutions\u2014including upgraded infrastructure and stricter environmental regulations\u2014are essential to safeguard Lake Chivero\u2019s future as a lifeline for millions.<\/p>\n\n\n\n
\u201cThe rains helped, but they\u2019re not a fix,\u201d Marewangepo said.<\/p>\n\n\n\n
\u201cWe must act now to prevent another crisis.\u201d<\/p>\n\n\n\n
Zim GBC News\u00a9\ufe0f2025<\/strong><\/p>\n\n\n\n <\/p>\n","protected":false},"excerpt":{"rendered":" Harare CorrespondentHARARE \u2013 Recent heavy rains have significantly improved water clarity in Lake Chivero, marking a turnaround from a toxic algal bloom crisis that plagued the reservoir late last year,… <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-7001","post","type-post","status-publish","format-standard","hentry","category-local-news"],"_links":{"self":[{"href":"http:\/\/zimgbcnews.co.zw\/index.php?rest_route=\/wp\/v2\/posts\/7001","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/zimgbcnews.co.zw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/zimgbcnews.co.zw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/zimgbcnews.co.zw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/zimgbcnews.co.zw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7001"}],"version-history":[{"count":1,"href":"http:\/\/zimgbcnews.co.zw\/index.php?rest_route=\/wp\/v2\/posts\/7001\/revisions"}],"predecessor-version":[{"id":7002,"href":"http:\/\/zimgbcnews.co.zw\/index.php?rest_route=\/wp\/v2\/posts\/7001\/revisions\/7002"}],"wp:attachment":[{"href":"http:\/\/zimgbcnews.co.zw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7001"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/zimgbcnews.co.zw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7001"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/zimgbcnews.co.zw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}