seodata.dev

keyword

carbon dioxide toxic

Monthly search volume and cost-per-click data for "carbon dioxide toxic" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=carbon+dioxide+toxic&country=us" +--------------+------------------+ | volume | 140 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-30 | +--------------+------------------+
All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
is co2 toxic 390 $0 14/20
is carbon dioxide toxic 320 $0.07 17/20
co2 toxic 170 $0 15/20
is carbon dioxide deadly 140 $0 16/20
toxicity of carbon dioxide 140 $0 16/20
carbon dioxide toxicity 140 $0 14/20
is co2 deadly 90 $0 15/20
why is carbon dioxide toxic 50 $0 15/20
is co2 toxic to humans 40 $0 16/20
is co2 gas dangerous 30 $0 15/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://api.seodata.dev/v1/keyword?q=carbon+dioxide+toxic&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt