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Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/},\n}", "markdown": "[Ōta (JP-40), Japan: jobs, air quality](https://immigrationdb.com/cities/jp/ota-40-1853655/) — ImmigrationDB; ImmigrationDB; snapshot approved-static-d7ed373c115d60d0; version approved-static-d7ed373c115d60d0; retrieved 2026-09-12; built 2026-09-12." }, "boundary_note": "This citation identifies the ImmigrationDB compilation/page. 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It is about 14.4 km away by straight-line distance." }, { "question": "Which comparable places record less crime than Ōta?", "answer": "13 places have a lower recorded total crime rate than Ōta in this strictly source-matched cohort. The comparison uses Tokyo Metropolitan Police annual 2024 + Tokyo Metropolitan Government population estimate, period 2024, and does not compare across incompatible police definitions." } ] }, "country_rules_url": "/countries/japan/", "answers": [ { "answer_id": "answer:city:jp:ota-40-1853655:population-current", "slot_id": "city.population.current", "answer_type": "direct_metric", "status": "supported", "question": "How many people live in Ōta?", "direct_answer": "The published population was 759,409 people in October 2025.", "qualifier": "City-scope resident count. Density, foreign-resident counts and the country-wide figure are separate rows in the table below.", "temporal": { "mode": "historical_observation", "source_period": "October 2025", "captured_at": "2026-09-11" }, "value": { "raw_value": 759409, "normalized_value": 759409, "machine_value": 759409, "display_value": "759,409", "unit": "people", "format_profile_id": "people.count.answer.whole.v1", "approximation_label": null }, "format_profile_id": "people.count.answer.whole.v1", "evidence": [ { "claim_id": "claim-8245279a7534", "role": "primary", "metric_id": "population_total" } ], "alternatives": [], "dependency_hash": "77939c907b80bff751b66819ca8e2b4d06b752c02dfe0c9f57c37451d99d52f3" }, { "answer_id": "answer:city:jp:ota-40-1853655:air_quality-pm25_annual", "slot_id": "city.air_quality.pm25_annual", "answer_type": "direct_metric", "status": "supported", "question": "Is the air quality good in Ōta?", "direct_answer": "The annual PM2.5 mean is 7.7 µg/m³ (2023) — above the WHO 2021 guideline of 5 µg/m³ but within the EU limit of 25 µg/m³.", "qualifier": "Annual mean at the measuring site(s) serving the city; current-day readings differ.", "temporal": { "mode": "historical_observation", "source_period": "2023", "captured_at": "2026-08-26" }, "value": { "raw_value": 7.7, "normalized_value": 7.7, "machine_value": 7.7, "display_value": "7.7", "unit": "µg/m³", "format_profile_id": "concentration.ugm3.annual.1dp.v1", "approximation_label": null }, "format_profile_id": "concentration.ugm3.annual.1dp.v1", "evidence": [ { "claim_id": "claim-c65fd9838c71", "role": "primary", "metric_id": "air_quality_pm25_annual_ug_m3" } ], "alternatives": [], "dependency_hash": "935d04705326c01cc956891e52f3f5bc2eb83c3dd3ceaa5222a56a513a456486" }, { "answer_id": "answer:city:jp:ota-40-1853655:unemployment-current", "slot_id": "city.unemployment.current", "answer_type": "direct_metric", "status": "supported", "question": "What is the unemployment rate in Ōta?", "direct_answer": "The unemployment rate is about 3.2 % (October 2020).", "qualifier": null, "temporal": { "mode": "historical_observation", "source_period": "October 2020", "captured_at": "2026-08-03" }, "value": { "raw_value": 3.22, "normalized_value": 3.22, "machine_value": 3.22, "display_value": "3.2", "unit": "%", "format_profile_id": "percent.1dp.answer.v1", "approximation_label": "about" }, "format_profile_id": "percent.1dp.answer.v1", "evidence": [ { "claim_id": "claim-a70b369fc35f", "role": "primary", "metric_id": "unemployment_total_percent" } ], "alternatives": [], "dependency_hash": "ee460b98a9f89025b461e2f31f1a0ebced724f29f220c4f4350903b2c9b9b9ba" } ] } }