No menu items!

COSTA RICA'S LEADING ENGLISH LANGUAGE NEWSPAPER

HomeEnvironmentUPDATE: Costa Rican officials downgrade alert following ammonium nitrate spill in Nicoya...

UPDATE: Costa Rican officials downgrade alert following ammonium nitrate spill in Nicoya Gulf

UPDATE, Sunday, May 3 at 2:30 p.m.:

National Emergency Commission officials on Sunday afternoon downgraded a public alert from “red” to “yellow” and advised swimmers that it’s safe to go back into the water following the capsizing of a barge carrying 180 tons of ammonium nitrate in the Nicoya Gulf on Saturday.

Following a 1 p.m. press conference on Sunday, the daily La Nación quoted Public Security Vice Minister María Fulmen as saying, “What we’ve seen are a few dead fish. We’re calling for calm.”

The announcement was made despite the fact that it will take lab workers 72 hours to obtain results from water samples taken from the gulf.

Officials will continue monitoring for the potential presence of algal bloom, known as red tide, a possible consequence of the ammonium nitrate spill, La Nación added.

Original story continues here:

Officials from several government agencies are scrambling to respond to the contamination of Costa Rica’s Nicoya Gulf with 180 tons of ammonium nitrate after a barge capsized Saturday afternoon near the central Pacific port city of Puntarenas.

On Sunday morning, the National Emergency Commission (CNE) warned residents and tourists in the canton of Puntarenas – from Paquera to Tambor, and at Puntarenas and Caldera beaches – not to bathe or fish in the gulf’s waters until further notice. Health officials also were asked to monitor the situation.

A dead fish floats in the Nicoya Gulf.
(Via CNE Facebook)

At 2:30 p.m. on Saturday afternoon, a barge transporting ammonium nitrate for the fertilizer company Fertilizantes de Centroamérica (FERTICA) capsized in choppy waters near Puntarenas, 60 kilometers west of Costa Rica’s capital, releasing 180 tons of toxic cargo into the gulf. Emergency personnel rescued two crew members aboard the barge when it capsized, the daily La Nación reported.

As The Tico Times reported last Thursday, Omar Lizano Rodríguez, an oceanographer with the University of Costa Rica’s Center for Research in Marine Sciences and Limnology, predicted that waves off the coast of Puntarenas could reach up to 2 meters in height by Saturday.

By Sunday morning officials from agencies including the CNE, the Public Health Ministry, the Public Security Ministry, the Costa Rican Fisheries Institute and the Environment Ministry were meeting to activate an emergency response strategy that included today’s warning.

“Authorities hope the product [ammonium nitrate] has been diluted in the gulf waters, and that currents have taken it out to open sea. However, it’s necessary to conduct a series of laboratory studies to rule out any type of damage it could cause,” the CNE stated in its warning to the public.

Carlos Hidalgo, a spokesman for the National Police, told The Tico Times that several area police officers have been assisting response efforts since Saturday afternoon. Water samples taken by officials from several agencies will be sent for testing to determine the level of contamination, and police officers are helping monitor area beaches, he said.

Emergency personnel conduct patrols in the Nicoya Gulf.
(Via CNE Facebook)

Claudia Agraz Hernández, a wetlands and environmental expert, told the online news site ElPais.cr that the spill could produce a proliferation of micro-algae, a depletion of oxygen in the waters, and the death of several marine species. Other damage could include “problems with nutrients along the coast, water quality, and damage to the mangroves and fisheries, which could be significant,” she told the news site.

Leaders of environmental and fishing groups urged authorities to fully investigate the accident and send the culprits to an administrative environmental court and prosecutors, ElPais.cr reported.

A police officer stands watch on a beach.
(Via CNE Facebook)

Follow wordpress-257819-2837440.cloudwaysapps.com for updates.

Trending Now

The Other Cerúndolo: Juan Manuel Reaches French Open Last 16 in Record Marathon

One Cerúndolo went out at Roland Garros on Saturday. The other made history. Hours after 25th seed Francisco Cerúndolo was knocked out of the...

Guatemala Agrees to Joint U.S. Military Strikes Against Drug Traffickers

It is a significant moment in the long and complicated relationship between the United States and Central America. Guatemala has agreed to allow American...

Costa Rica Soccer Team Rocked by Off-Field Problems Before England Match

Costa Rica’s men’s national team is facing another setback at the start of Fernando “Bocha” Batista’s rebuild, after three players were removed from camp...

World Cup Set to Become Biggest Betting Event Ever

Global betting revenue for the upcoming World Cup is likely to be "in excess of $50 billion", betting expert Darren Small told AFP, for...

Argentine Sierra Becomes the Surprise Story of the French Open Women’s Draw

Argentina's Solana Sierra has become one of the most improbable stories of the 2026 French Open, reaching the third round at Roland-Garros as a...

Costa Rica Named Latin America Leader for Immigrant Well-Being

Costa Rica ranked 44th out of 82 countries in the 2026 Remitly Immigration Index, placing it in the middle of the global list of...

Costa Rica Braces for Extended El Niño With Water Rationing and Inflation on the Horizon

Costa Rica is bracing for an extended El Niño event that meteorologists now expect to grip the country from June through the second half...

Keylor Navas Leads Pumas Into Liga MX Final Second Leg

Keylor Navas has Pumas UNAM one match from the Liga MX title after delivering the kind of performance Costa Rican fans have watched for...

Costa Rica Targets Canadian Tourists With First-Ever F1 Promotion

Costa Rica promoted itself as a tourism destination at an official Formula 1 race for the first time in its history this past weekend,...
🌴 The Weekly Pura Vida

Costa Rica, Once a Week

The week's top stories, weather & insider tips — delivered every Sunday. One email, zero clutter.

🔒 Free. No spam. Unsubscribe anytime.

Loading…

Latest News from Costa Rica

Costa Rica Coffee Maker Chorreador

Live prediction market odds via Kalshi. Updates every 60 seconds.
Kalshi is available to US residents 18+. The Tico Times may earn a commission from new signups.

Costa Rica Car Rentals
Costa Rica Travel Insurance
Costa Rica Travel